Photosynthesis: the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Stratosphere: the layer of the earth's atmosphere above the troposphere, extending to about 32 miles (50 km) above the earth's surface (the lower boundary of the mesosphere).
<u><em>INFORMAL</em></u>
the very highest levels of a profession or other sphere, or of prices or other quantities.
Troposphere: the lowest region of the atmosphere, extending from the earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.
Hope this helps?
I sharpened my skills under the mentorship of my coach.
You need a noun to complete this sentence, and mentorship is the only noun here - the rest of the words are adjectives.
Answer: furlough
Explanation: A furlough is something they use in the military, basically time off.
The correct answer is D. Weed tree that wreaks havoc on the environment is referred to favorably as the "tree-of-heaven."
Explanation:
Irony occurs when the outcome in a situation is not the one expected or words have an opposite meaning to the literal meaning. In the excerpt, there is irony because the three known as the "tree-of-heaven" in China is an invasive and harmful species. This can be seen in "implacable invaders capable of rooting in tiny chinks in subway tunnels" and in "heaving up sidewalks and wreaking havoc in sewers" that shows the power the tree has to invade spaces and destroy structures despite the name suggests the tree is positive. This means there is an incongruence between the expectations about the tree and the reality. Thus, the statement that explains irony is statement D.