He area of earth science that examines the physical and biological changes that have occurred in earth's past is called

What is a coast of using technology to transport water? a. cities can be built in otherwise uninhabitable areas. b. crops can be irrigated and grown in new areas. c. floods can be averted in flood-prone areas. d. freshwater supplies can be depleted in an area.

Diffusion and osmosis are forms of passive transport

Which could be a pathway of food through an ecosystem