Where might a spring form?
between the saturated and unsaturated zones
at the bottom of a deep valley
on a mountaintop at the origin of a stream
O on the surface of a fast-moving aquifer

The blank theory suggests that the sun, planets, and other celestial bodies of the solar system came from a cloud of dust and gas? a.) condensationb.) steady state c.) big bang d.) nebular

What is the result of the greenhouse effect? a. heat is deflected from the atmosphere. b. heat is released from the atmosphere. c. heat is kept in the atmosphere. d. plants are able to grow in the tropics where the air is the heaviest.

Soil color only reflects the amount of organic matter present in soil.