False, Copper Canyon is the biggest canyon in North America.
A.) Inexpensive land in major cities
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The meaning of star system is group of hundreds of stars , that form around the same time .
Answer:
Self generation
Explanation:
during these periods pepole were compelled to return to their hometown there they have known the real value of organic food and their importance.
Answer:
Dissolved Oxygen and Water. Although water molecules contain an oxygen atom, this oxygen is not what is needed by aquatic organisms living in natural waters. A small amount of oxygen, up to about ten molecules of oxygen per million of water, is actually dissolved in water. Oxygen enters a stream mainly from the atmosphere .
Explanation:
I want to investigate how temperature affect the concentration of oxygen in air as it will affect how much oxygen we inhale per breathe. Oxygen by percent composition in air is 20.95%. However, the oxygen concentration/density in air varies due to the expansion of gas particles and varies inversely wth temperature according to P/RT=n/V.
