NSO Level 2 Class 4 2012 − 13 Part 2 with Solutions and Explanations at Doorsteptutor. Com

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Q-17 which of these activates will help conserving soil and check soil erosion?

A. Constructing dams

B. Stopping overgrazing

C. Terrace framing

D. All of these

How to Write Good Answer? Soil Erosion Cause & Control - Writing Wednesdays (Dr. Manishika)

Q-18 In a field Community, a food chain is represented as: which one of the pie charts correctly shown the ideal proportion of the organisms in the community based on the food chain?

A.

Food Chain Pie Chart

B.

Food Chain Pie Chart

C.

Food Chain Pie Chart

D.

Food Chain Pie Chart
Food Chain, Food Web and Ecological Pyramids - 3 Key Concepts in 1 Lecture

Q-19 The given picture shows two boys trying to move a boat from the beach into the water. Identify the forces as represented with labelled arrows D, E and F?

Direction of Force
Table Three
DEF
PullingFrictionalGravitational
PushingFrictionalGravitational
PushingPullingFrictional
PullingPushingFrictional

Q-20 What is the expected result of the experiment shown in the diagram?

Ballon and Ice

A. The balloon will further inflate and fly off the mouth of the flask.

B. The conical flask will crack.

C. The balloon will be sucked into the conical flask.

D. Nothing will happen.

NCERT Class 7 Geography Chapter 4: Air (Examrace -Dr.Manishika) | English | CBSE

Q-21 Study the table given below carefully. Which rows have statements that are INCORRECT?

Table
StatementsFrogHousefly
PLays eggs in waterYesYes
QUndergoes metamorphosisNoYes
RHas four stages in its life cycleYesNo
SYoung resemble its parentNoNo

Choices

A. P, Q and R

B. Q and S

C. P and R

D. P, Q and S

Life Cycle of Butterfly & Frog - Kindergarten (KG-2/K-2) - Kids-Teaching-Kids

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