1) What gas needed to be established within the Earth's atmosphere before 1 point the atmosphere was able to absorb and maintain heat? Hydrogen
Nitrogen
Oxygen
Carbon dioxide

Which statements about wells are true? check all that apply. a) wells bring groundwater from the unsaturated zone to the surface of the water. b) wells need to be drilled below the water table. c) if water is pumped from a well too quicky, the well may run dry. d) water from wells is generally not safe to drink. e) water gushes from artesian wells due to pressure.

What causes heat transfer in fluids

In order from largest to smallest what are earths five main oceans