Define photosynthesis and explain how it can change the composition of gases in the atmosphere over time
What will be an ideal response?
Answer: Photosynthesis is the process by which green plants convert light energy to chemical energy. Photosynthesis uses energy from sunlight to convert water absorbed by the roots of plants and carbon dioxide taken in from the air into the chemical compounds known as carbohydrates, which both support plant processes and ultimately nourish the animal kingdom. In this process, oxygen molecules are released into the atmosphere as a by-product. For many decades, the rate of carbon dioxide input to the atmosphere has exceeded the rate of removal, leading to a global increase in concentration.
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Thornbush and scrub forests tend to be found ____
a. on the subtropical margins of rainforests, where soils are especially poor in nutrients b. in the wettest regions of tropical rainforest climates c. in midlatitude desert climates d. at the poleward boundary of the taiga e. in marine west coast climates
Condensation occurs primarily when air is cooled, because as temperature drops the speed of the water molecules increases
a. True b. False
Beyond the belts of hills that represent terminal and recessional moraines lie _______________ plains composed of meltwater deposits. These extensive areas of relatively low relief consist of glaciofluvial deposits that are sorted as they are transported by meltwater from the ice sheets
Fill in the blank(s) with correct word
What are some of the ways that human activities affect rivers?
What will be an ideal response?