Canyons, caverns, channels, and valleys all form because of erosion by water. Which landform listed is mainly formed because of erosion by groundwater?
A a broad valley
B. a narrow canyon
C. a human-made channel
D. an underground cavern

Heredity has an impact on personal health, but environmental factors are important as well. select the best answer from the choices provided

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Which excerpt from the land, part 4 best supports the claim that paul is a talented horseback rider? a/“figure that says more than anything else! now, i want to ride that stallion! " b/my daddy shook his head. "paul only rides horses he knows. ” c/? i glanced over at the other rider. the fellow was older than i, and had the weight of a man on him. d/a man out of alabama, man name of ray sutcliffe, told my daddy i was such a good rider, he wanted me to ride some races for him.