When does upward growth of cities typically occur? a when water resources are limited
b. when waste production is a problem
С. when available land is limited
d when population exceeds 100,000

Which property of soil depends on the size of particles? color odor temperature texture

What is the name of the ocean current that affects the british isles? how does it influence their climate?

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?