1. How does temperature break the rocks apart?

 Why is weathering useful to plants and animals?

 What do you call the breaking down of rocks into smaller pieces?

 Which of the following is the product of continuous breaking of rocks?

What is the type of weathering that happens when the rock changes its composition?

The following tends to cause physical of mechanical weathering. Which is not?

You noticed that some small plants are growing on the rocks. What do you think will happen to this rock after some time?

 Why is the soil with growing trees not easily eroded by water?

 Which of the following activities contribute to the breaking down of rocks?

How do roots of plants contribute to the breaking of rocks?

 Which of the following is the effect of soil erosion?

 Which of the following factors of soil erosion can cause rockslide or landslide?

The following human activities causes weathering. EXCEPT

 What makes the soil less fertile after a heavy rain?

How does soil erosion affect fisheries in our country?

 How does soil erosion affect plants in our environment?

 In which part of Marikina will likely be affected by erosion easily?

What type of soil is easily blown by wind?

What causes the soil in the forest to be cracked and become useless?

Which areas given below will soil be likely washed away easily?