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NEDJO NOICE
DIVISION OF GEN. TRIAS CITY
Project ISULAT Mo Gen. Trias Worksheets
(Intensified Support to Learning Alternatives Through Modules and Worksheet
5. What kind of weathering processes can either form or destroy minerals through
oxidation, hydrolysis, and carbonation?
A. Physical weathering
C. Mechanical weathering
B. Chemical weathering
D. Both Physical and Chemical weathering
6.What will happen to a rock when it is exposed to a higher temperature?
A. contract
C. expand
B. evaporates
D. sink
7.How many years does it takes for the rocks to change into soil?
A. 10,000 years
C. 100 years
B. 1,000 years
D. 1,000,000 years
8. Why is organic matter like humus an important part of soil?
A. It helps to improve the quality of water.
B. Humus can break down organic matter.
C. It is rich in nutrients, which is important for fertility
D. It converts nitrogen in the air into nitrates used by plants.
9. Below is the diagram of a soil profile. Which layer contains the most organic
material (organic materials can be remains of plants and animals and their
waste products)?
A. Layer A
C. Layer C
B. Layer B
D. Layer D
10. What is formed when plants and animals decay in the soil?
A rust
C. humus
B. muck
D. mud
weak acid is what example of chemical
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