Question

SECTION - A
23
1. Write the name of the shelters made by Eskimos.
2. Houses in hot/ cold/ rainy areas have thick walls and flat roofs.
3. Molecules/ Atoms/ Elements are the building blocks of matter.
4. What are the three states of matter?
5. An inclined plane is a
which makes work easier.
6. We are able to walk because of
force.
7. Give two examples of third-class lever.
8. Those who study earthquakes are called
9. Drought is caused by moisture in the air. (T/F)
10. What is lava?
11. Complete the series:
Rice : Clayey soil ::
: black soil
12. Give an example of plant where the new plants can grow from t
13. What do we need to make a hut?
14. Give two examples of dicot seeds.​

Answer 1

Answer:

Ans 1: Igloos

Ans 2: Hot

Ans 3: Molecules

Ans 4: Liquid, Solid and gas

Ans 5: Machine

Ans 6: Gravitational and muscular force

Ans 7: Baseball bat and tweezers

Ans 8: Seismologists

Ans 9: False

Ans 10: Lava is the liquid which is known as magma under the Earth. It is actually a composition of molten rocks.

Ans 11: Rice : Clayey soil ::  Jowar: black soil

Ans 12: Incomplete question

Ans 13: A hut is a primitive dwelling, which may be constructed of various local materials. Huts are a type of vernacular architecture because they are built of readily available materials such as wood, snow, ice, stone, grass, palm leaves, branches, hides, fabric, or mud using techniques passed down through the generations.

Ans 14: Grams and Cashews

Explanation:

Ans 2: Thick walls and flat roofs help absorb the heat

Ans 7: In a third-class lever, the input force is in between the output force and the fulcrum. An example of this class of lever is a baseball bat. The handle of the bat is the fulcrum, you supply the input force near the middle, and the other end of the bat that pushes the ball with the output forces.

Ans 9: It is the opposite of the reason.

Hope this helps you......

Answer 2

Explanation:

1 ) igloos

2) cold

3) atoms

4) solid,liquid,gas

5) inclined plane makes it easier to make move objects to a higher elevation .the slopping surface of the inclined plane supports part of the weight of the object as it moves up the slope.as a result it takes less force to move the object uphill

6) friction force

7) fishing rods and ice tongs

8) Seismologist

9) false

10) hot molten or semi fluid liquid rock errupted from a volcano or fissures

11) cotton

12) dear, question is not clear

13) grass ,wood ,mud ,fabric,etc.

14) peas and almond