Experimental design: as you are walking down a wooded path, you notice a large depression in the ground that has burn marks along the outside. what caused the hole?

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

c. heat from the poles back down towards the equator.

. ph changes the ability of them he enzyme to dissolve in water.