Which is an example of a chemical change

Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

What is the result of the greenhouse effect? a. heat is deflected from the atmosphere. b. heat is released from the atmosphere. c. heat is kept in the atmosphere. d. plants are able to grow in the tropics where the air is the heaviest.

Which numberline shows the solution to n -3