1. What is the process by which rocks turn into soil?
A. weathering
B. dissolving
C. weather
D. breaking
2. Which of the following causes physical or mechanical weathering?
A. salt water
B. oxidation
C. acid rain
D. roots of trees
3. Which of the following human activities contribute to weathering?
A. painting
B. farming
C. fishing
D. reforestation
4. Which of the following processes can bring out chemical weathering?
A. oxidation
C. boiling of water
B. plant growth
D. flowing water
5. Which of the following is NOT an agent of weathering?
A. plants
B. ice
C. acid
D. soil​