Clear cutting tropical rainforest can lead to devastating environmental problems. Which of the following will NOT be negatively affected by the destruction of the rain forest?

Farmland

Medicines for treating cancer and other diseases

Atmosphere oxygen levels

Species diversity

How many major plates cover the earth

What is the period of cell life when it is conducting

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