The speed of a river varies from close to 0 m/s to 3.1 m/s (7 mph). Factors that affect the speed of a river include the slope gradient, the roughness of the channel, and tides. Rivers tend to flow from a higher elevation to a lower elevation.
I would guess A. If you think of greenhouse gasses in the atmosphere they trap heat in. that is what causes global warming.
Answer & Explanation:
Physical characteristics include land forms, climate, soil, and natural vegetation. For example, the peaks and valleys of the Rocky Mountains form a physical region. Some regions are distinguished by human characteristics. These may include economic, social, political, and cultural characteristics.
Answer:
<em>Alternative Energy refers to energy sources other than fossil fuels. This includes all renewable sources and nuclear. Nuclear is not classified as a renewable energy source. A renewable energy source is produced from sources that do not deplete or can be replenished</em><em> within a human’s lifetime. Nuclear is produced from mined elements like uranium and thorium which cannot be replenished.</em>
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I Hope this will help you if not then Sorry, have a great day :)</h3>
