Nitrogen,<span>The atmosphere is composed of ~78% nitrogen and ~21% oxygen, with small amounts of other gases. The bulk composition of the earth by weight is mostly, iron, oxygen, silicon and magnesium, in that order, with all the other elements making up only about 5% of the earth's weight.</span>
<span>The answer is enzymes. Enzymes are biological catalysts and increase the speed of change from substrate to product. The name of enzymes is usually derived from the substrate they break down. For example, lactase breaks down sugar lactose. The name of enzymes contains suffix -ase, for instance, carbonic anhydrase, lactase, lipase, amylase, etc...</span>
Answer:
and a single circular DNA molecule.
The correct answer is option D
The main cause of global warming is the green house gases that contributes more towards global warming.
The carbon dioxide produced from the transportation is the main green house gas. Transportation being the major source of carbon dioxide contributes towards global warming.
Reducing the amount of green house gases will help in the reduction of the global warming.
