Activity 5
Choose the letter of the correct answer.Write the answer in your notebook.





1. Which of the following activities of man contribute to the breaking down of rocks?
A. fishing C.studiying
B. sky diving D.mining
2 How do roots of plant break down rocks?
A They heat the rocks
8. They split the rocks apan
c They absorbed rock particles
D. They leave materials on the rocks
3. How does temperature breakdown rocks?

A Rocks break when it is cooled.

B. Rocks break when it is heated

C Rock break when it is not exposed to water

D. Rocks break when dis heated and then cooled

4. Some animals like the rabbits and moles dig up soil for shelter or to instead How does its
activity contribute to the breaking down of rooks?

A Small rocks that be exposed to sunlight

B The digging of burrowing of animals breaks the rocks into small pieces

C. The food that these animals bring underground causes the breaking of socks

D. Animals will enjoy staying in the dug holes and cause the rising of
temperature inside

5. Water, people animals wear wey bits of rocks. When this happens which of these is
going on?

A erosion

B fermenting

C. weathering

D mountain building​