Test Yourself

21. Which activity describes the process of how rocks turn into soil?

• planting and harvesting vegetables

• catching and canning fishes from the ocean

• digging mountains with bulldozers and quarrying rocks

• segregating wastes into biodegradable and non-biodegradable.

2. Which is an agent of weathering?

• clouds

• moon

• water

• thunder

How can slope of land affect the amount of soil being carried away through erosion?

• The steeper the land the greater the erosion. 

• The gradual the slope the greater the erosion.

• The slope of the land does not affect erosion

4. ____________ is breaking down of rocks into small pieces

• erosion

• weathering

• flooding

• storm surge

5. How can soil erosion be prevented?

• Regulate mining activities. 

• Allow quarrying in the mountains.

• Encourage fishing on the rivers

• Organize a campaign for proper waste segregation

How does temperature contribute to the breaking down rocks? Rocks break when ______

• They are hammered

• They are heated by the sun

• There is no more sun 

• They are heated and cooled

Public storm signal number 2 is raised by PAGASA.  What is the speed of wind of the expected

             typhoon?

• A.    30-60 kph             

•              B. 61-120 kph            

•             C. 121-170 kph     

•      D. 177-220 kph

What will you do in case a typhoon hits your area?

• Just play outside

• Stay home and do nothing

• Pack and go to the beach and have fun

• Help in securing delicate materials at home and postpone any kind of travelling.

9. Which describes monsoon winds?

• Colds winds blowing steadily towards the equator.

• Unstable warm air that rises rapidly towards Atlantic.

• Intense cold air that rises rapidly towards the Atlantic.

• Seasonal winds blowing steadily towards the equator in a six month cycle

Where does a cyclone originate?

• lake                         

•          mountain                 

•           ocean                      

•    plain