Which of these protects the earth from harmful radiation when found in the stratosphere, but is a pollutant at lower altitudes?

Which factors are examples of how technology may have affected the great migration apex

The animals in the food web release into the environment, which plants then use for a) oxygen: respiration b) carbon dioxide: respiration c) water vapor: photosynthesis d) carbon dioxide: photosynthesis

Which factors in europe caused the economic situation that occurred following world war i? choose 3. desire for luxury goods now that the war had ended loss of life and property damage from the war high inflation refusal to trade between countries inability to pay back debts strong enforcement from the league of nations