Everyday Science MCQS Material, Green Vegetables, Hermaphroditism

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447. The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least 56 ft.

448. It is possible to recognize a person in the dark by simply hearing hiss unique voice. It is because of the Pitch.

449. When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because light is Transparent.

450. The principle used in radar is the same as that of sonar. In radar we use radio waves; whereas in sonar we use Ultrasonic.

451. Parsec is a unit of distance.

452. The German or nickel silver is composed of approximately 60% copper, 20% nickel and 20% zinc.

453. The temperature of the dead body is the temperature of the place where it is kept.

454. Cusec is the unit for measuring the flow of liquids/flow rate, equal to one cubic foot per second.

455. The deepest place on earth is Mariana trench.

456. Twinkling of stars is caused by Refraction of light.

457. Magnifying power of a simple microscope can be increased by decreasing focal length of the lens.

458. A very important practical application of properties of matter is hoeing or godi practiced by the farmers. This property of matter is called Capillarity.

459. It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb. wt. per square inch. But the man feels quite comfortable. It is because of an equal and opposite pressure acts from inside.

460. A nuclear reactor is a device used to carry out controlled nuclear reaction whereas GM counter is a device used to detect nuclear radiation.

461. A body can escape the gravitational pull of the earth if it is thrown up with a velocity of 7 miles per sec.

462. Night vision is possible with the help of Infrared Rays.

463. Myopia is a defect of human eye. It can be corrected by using a lens called concave lens.

464. Walnuts can be broken in the hand by squeezing two together but not one. It is because of work done.

465. The instrument which is specially designed for recording earth quake wave is called seismograph which measure earth quake waves on a Richter scale.

466. Fossils found in the lowest geological strata are generally most primitive.

467. Evolution can be described as a continuing process.

468. Mutation is the only source new alleles.

469. Polygenic characteristic are controlled by Multiple Genes.

470. Digestion involves ingestion, digestion, absorption and elimination.

471. In humans, most nutrient molecules are absorbed by the small intestine.

472. The energy needed to fuel essential body processes is called Basal metabolism.

473. Inhaled air passes through Bronchiole in the last.

474. Hermaphroditism is a form of sexual reproduction.

475. Cobalt is a metal which is strongly attracted by a magnet.

476. Hepatitis A is transmitted to different individuals by Faeces.

477. The unit that coordinates different devices of the computer system is Control unit.

478. The approximate intensity level of the sound which can cause damage is 100 decibel (dB).

479. Fuse wire is made of 63% tin and 37% lead.

480. The unit of photosynthesis in green plants is called Quantosome.

481. The property by virtue of which metals can be beaten into thin sheets is known as Malleability.

482. The sky appears blue because the earth’s atmosphere Reflects blue light.

483. Gamma rays are higher energy rays emitted by radioactive elements.

484. The radiation that is used in magnetic resonance imaging (MRI) is in the infra-red range.

485. Lead is used in storage batteries.

486. The gas produced during the fermentation of Biomass is Methane.

487. Biogas is the common name of Natural Gas.

488. Bacteria help in the process of fermentation of biomass.

489. One thousand watt power is called as 1 kilowatt.

490. The meter installed in our homes measure electricity in KWh.

491. Unis of electricity consumed by 2500 watt air-conditioner in one hour are 2.5 units.

492. Gas bills are charged in CGS and BTU.

493. In BTU system, one BTU is equal to 1055 joule.

494. Air is present in the atmosphere of earth up to the height of 200 kilometres. 495. All forms of energy that we use are ultimately transformed into Heat energy. 496. The gas which acts as a glass of greenhouse is Carbon dioxide.

497. Google is the largest search engine of internet.

498. Carbon dioxide is used in the preparation of soft drinks.

499. World’s largest flower auction is held in Aalsmeer.

500. All the plant life is based upon the compounds, which are made up of Oxygen, Carbon and Nitrogen.

501. Huge white ball in the sun almost consists of Hydrogen.

502. Charcoal is made by heating wood.

503. In blood, the percentage of water is 90%.

504. As the temperature of ice rises, the ice melts and its density increases.

505. Water is a universal solvent for Biochemical Reactions.

506. The temperature of the water below the solid ice layer is 4 degree centigrade. 507. The volume percentage of nitrogen in air is 78%.

508. The composition of oxygen in air is kept constant by the process of Photosynthesis.

509. Nitrogen occurs in plants and animals in the form of Protein. 510. Air contains volume of carbon dioxide approximately 0.03%.

511. The gases which are used by divers as an artificial atmosphere are helium and oxygen.

512. Noble gases are extremely unreactive.

513. The second most abundant metal found in the earth’s crust is Iron.

514. The iron content in plant tissue is normally between 50-250ppm.

515. Chernobyl nuclear reactor lies in Russia.

516. Chernobyl nuclear plant was destroyed in 1986 due to Failure of cooling system.

517. Radioactive source must be kept in Lead Container. 518 In Brazil alcohol is used as fuel for vehicles.

519. Voltmeter can be made by modification in Galvanometer.

520. The device used for the measurement of current, voltage and resistance is AVO meter.

521. In the name of multimeter ―AVO‖, V stands for Voltage.

522. Silicon is a Semiconductor.

523. Paper is an insulator.

524. For sending sound waves at large distance, Radio Waves are used.

525. The carrier waves used for the radio transmission have the frequency up to 30 KHz.

526. Video camera is used to convert Picture into electrical signals.

527. In a colour television, the colours are green, red and blue.

528. The waves used for sending signals to the satellite from ground station are Micro Waves.

529. First telegraph signal was transmitted in 1901.

530. In a telephone receiver, Magnet is placed under the diaphragm.

531. Nowadays, the international communication and transmission is being done through the waves known as Microwaves.

532. Modern Bicycle was invented by Staley.

533. Coulomb is the unit of Electric Charge.

534. For certain reasons, some people develop cloudy areas in one or both lenses. This defect is called Cataract.

535. In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as Galvanization.

536. In a reactor, cadmium rods re used for Absorbing Neutrons.

537. Detergents dissolved in water help in cleaning clothes by reducing the surface tension of water.

538. The swing of a spinning cricket ball in the air can be explained on the basis of Bemoulli’s Theorem.

539. The absorption of ink by blotting paper involves Capillary Action phenomenon. 540. Materials for rain proof coats and tents owe their water proof properties to Surface Tension.

541. For being able to see three-dimensional pictures we have to use An Epidiascope.

542. Water has maximum density at 4 degree centigrade.

543. The highest recorded air temperature in the world in degree Celsius is 57. 544. The instrument that measures wind speed is the anemometer.

545. The theory of expanding Universe was first propounded by Hubble. 546. Used tea leaves contain Quinine.

547. A lake starts freezing because of the cold atmosphere. It will first freeze at the top surface.

548. The Sun remains visible for some time after it actually sets below the horizon. This happens due to Atmospheric Refraction.

549. An iceberg is floating in sea. One tenth of its mass will remain above the surface of water.

550. Bat has the highest upper limit of audible range.

551. Hotline is a telecommunication link between the rulers of countries.

552. Most of the ozone is concentrated in the Stratosphere.

553. The cow’s milk contains 80% of water in terms of percentage.

554. Numismatics is the study of Coins.

555. Measles is a viral disease.

556. Vitamin C is present in Citrus Fruits.

557. Leukaemia is a Blood Cancer.

558. Haemophilia is a hereditary disease.

559. Diamond is the hardest material.

560. Lead ball falls through water more slowly than through air because of the viscous force in water.

561. Polaroid’s are used for Photo elasticity.

562. Scalding with steam is more severe than scalding by boiling water because Steam contains more energy than boiling water.

563. Cooking oil can be converted into vegetable ghee by the process of Hydrogenation.

564. Stainless steel is an alloy of Iron, Chromium and Nickel.

565. Optical fibres work on the principle of Total internal reflection.

566. Water vapour beyond the dew point results in Condensation.

567. The main chemical substance present in the bones and teeth of animals is Calcium Phosphate.

568. The Green House Effect is caused by an excess of Carbon dioxide.

569. Bats can also fly in dark because they are capable of taking the help of Ultrasonic Waves.

570. Gold is found in its original form.

571. Green vegetables have high iron content.

572. The fat content in buffalo milk is 10%.

573. Whale has the largest egg.

574. The rear view mirror of a motor vehicle is Convex.

575. A post mortem study usually involves an analysis of liver.

576. Bio fertilisers are nitrogen-fixing micro-organisms which can enrich soil.

577. Tincture of iodine consists of a solution of iodine in alcohol.

578. The only planet of solar system which has water vapours is Neptune.

579. The major part of natural gas, petroleum and coal consist of Methane.

580. Gypsum is used for cement.

581. Chromium is obtained from Chromite.

582. Silica is used in glass-making.

583. Human population has become double during the last 45 years.

584. At present population growth rate in Pakistan is 1.573%.

585. In Pakistan, the nuclear power stations are built at Karachi and Chashma. 586. Plutonium is used as Fuel for nuclear fission.

587. Uranium-235 is used in the fission process.

588. The solar energy falling on the atmosphere of earth is almost 1.4 kilowatt per square meter.

589. The large plates of solar panels are painted Black.

590. The temperature of the semi-molten rocks about 10 km below the surface is 200 degree Centigrade.

591. Cataract is a disease of eye.

592. Rayon is made of Cellulose.

593. Meter per second is a unit of Velocity.

594. The greatest number of compounds is formed by the element of Carbon.

595. The major component of honey is Glucose.

596. The working principle of a washing machine is Centrifugation.

597. Oxygen is present in the largest amount in terms of per cent by mass in the earth’s crust.

598. Radioactivity was first discovered by Henry Becquerel.

599. Helium gas is commonly used in balloons and airships.

600. The process of elimination of water from any system is called Dehydration. 501. Huge white ball in the sun almost consists of Hydrogen.

502. Charcoal is made by heating wood.

503. In blood, the percentage of water is 90%.

504. As the temperature of ice rises, the ice melts and its density increases.

505. Water is a universal solvent for Biochemical Reactions.

506. The temperature of the water below the solid ice layer is 4 degree centigrade. 507. The volume percentage of nitrogen in air is 78%.

508. The composition of oxygen in air is kept constant by the process of Photosynthesis.

509. Nitrogen occurs in plants and animals in the form of Protein.

510. Air contains volume of carbon dioxide approximately 0.03%.

511. The gases which are used by divers as an artificial atmosphere are helium and oxygen.

512. Noble gases are extremely unreactive.

513. The second most abundant metal found in the earth’s crust is Iron.

514. The iron content in plant tissue is normally between 50-250ppm.

515. Chernobyl nuclear reactor lies in Russia.

516. Chernobyl nuclear plant was destroyed in 1986 due to Failure of cooling system.

517. Radioactive source must be kept in Lead Container.

518. In Brazil alcohol is used as fuel for vehicles.

519. Voltmeter can be made by modification in Galvanometer.

520. The device used for the measurement of current, voltage and resistance is AVO meter.

521. In the name of multimeter ―AVO‖, V stands for Voltage.

522. Silicon is a Semiconductor.

523. Paper is an insulator.

524. For sending sound waves at large distance, Radio Waves are used.

525. The carrier waves used for the radio transmission have the frequency up to 30 KHz.

526. Video camera is used to convert Picture into electrical signals.

527. In a colour television, the colours are green, red and blue.

528. The waves used for sending signals to the satellite from ground station are Micro Waves.

529. First telegraph signal was transmitted in 1901.

530. In a telephone receiver, Magnet is placed under the diaphragm.

531. Nowadays, the international communication and transmission is being done through the waves known as Microwaves.

532. Modern Bicycle was invented by Staley.

533. Coulomb is the unit of Electric Charge.

534. For certain reasons, some people develop cloudy areas in one or both lenses. This defect is called Cataract.

535. In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as Galvanization.

536. In a reactor, cadmium rods re used for Absorbing Neutrons.

537. Detergents dissolved in water help in cleaning clothes by reducing the surface tension of water.

538. The swing of a spinning cricket ball in the air can be explained on the basis of Bemoulli’s Theorem.

539. The absorption of ink by blotting paper involves Capillary Action phenomenon. 540. Materials for rain proof coats and tents owe their water proof properties to Surface Tension.

541. For being able to see three-dimensional pictures we have to use An Epidiascope.

542. Water has maximum density at 4 degree centigrade.

543. The highest recorded air temperature in the world in degree Celsius is 57.

544. The instrument that measures wind speed is the anemometer.

545. The theory of expanding Universe was first propounded by Hubble.

546. Used tea leaves contain Quinine.

547. A lake starts freezing because of the cold atmosphere. It will first freeze at the top surface.

548. The Sun remains visible for some time after it actually sets below the horizon. This happens due to Atmospheric Refraction.

549. An iceberg is floating in sea. One tenth of its mass will remain above the surface of water.

550. Bat has the highest upper limit of audible range.

551. ―Hotline‖ is A telecommunication link between the rulers of countries.

552. Most of the ozone is concentrated in the Stratosphere.

553. The cow’s milk contains 80% of water in terms of percentage.

554. Numismatics is the study of Coins.

555. Measles is a viral disease.

556. Vitamin C is present in Citrus Fruits.

557. Leukaemia is a Blood Cancer.

558. Haemophilia is a hereditary disease.

559. Diamond is the hardest material.

560. Lead ball falls through water more slowly than through air because of the viscous force in water.

561. Polaroid’s are used for Photo elasticity.

562. Scalding with steam is more severe than scalding by boiling water because Steam contains more energy than boiling water.

563. Cooking oil can be converted into vegetable ghee by the process of Hydrogenation.

564. Stainless steel is an alloy of Iron, Chromium and Nickel.

565. Optical fibres work on the principle of Total internal reflection.

566. Water vapour beyond the dew point results in Condensation.

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