What questions do you have about how the heating systems work?

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.

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere