The blood in the lungs contains less oxygen and more carbon dioxide than the air. explain why oxygen moves from the air to the blood and carbon dioxide from the blood to the air

Explanation:

To sustain life, the body must produce sufficient energy. Energy is produced by burning molecules in food, which is done by the process of oxidation (whereby food molecules are combined with oxygen). Oxidation involves carbon and hydrogen being combined with oxygen to form carbon dioxide and water. 

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology