Answer:
<h2><em><u>B</u></em><em><u>.</u></em><em><u> </u></em><em><u>Mercury</u></em></h2>
Explanation:
The planets <em><u>Mercury and Venus </u></em> don't have a natural satellite.
Answer:
Explanation:
Oxygen is of no use to them, so they release it into the air. So there's a simple explanation for the Great Oxidation Event. It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere.
Pacific mountain system, series of mountain ranges that stretches along the Pacific Ocean coast of North America from northern British Columbia (Canada) to northwestern Mexico. They run for some 4,500 miles (7,250 km) in the United States and extend northward into Canada for another 1,000 miles (1,600 km).
Water vapor argon carbon dioxide
Answer:
It stimulates rapid national economic growth.
Explanation:
Both international trade volume and trade structure towards high-tech exports result in positive effects on China's regional productivity.
