Which gas accounts for the largest percentage of greenhouse gases in the atmosphere? O carbon dioxide
O nitrous oxide
O water vapor

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

What are positive impacts of algae? how is it used?

The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?