Match each climate zone with its description. 1. tropical
2. subtropical
3. Temperate
4. Polar
This zone is the hottest.
Most of the US is in this zone.
Most deserts are along this zone.
This zone is the coldest.

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

One reason scientists are trying to develop fuel sources from corn and sugar is because these sources are renewable fossil fuels are being depleted these crops can be widely grown all of the above

An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25