B.Encircle the letter of the correct answer. 1. What do we call the breaking down of rocks? A. Erosion B. Landslide C. Tsunami D. Weathering 2. Which of the following can break down rocks? A. Plants B. Man and animals C. Extreme temperature D. All of the above 3. Which of the following activities contribute to rock weathering? B. Cutting trees C. Planting trees D. Landscaping A. Mining 4. What is the most important effect of weathering on people and animals? A. Formation of soil B. Formation of clouds C. Formation of climate D. Formation of minerals 5. You see that some tiny plants are growing on the rocks in the garden. What do you think will happen after a long period of time? The rocks will A. grow bigger B. become very hard C. gather more minerals D. weaken and break apart 6. Weathering breaks down rocks. What is one the useful effect of weathering? A. Weathering helps in forming fossils. B. Weathering carries water to streams and oceans. C. Weathering helps in forming crude oil in rock layers. D. Weathering helps in forming soil on the surface of the earth.​