<u>Answer:</u>
The sequence of key ideas is as follows:
- Travel by land and water were solved in the nineteenth century.
- The twentieth century will solve the problem of flight.
- Wind resistance is a concern that needs to be solved.
- Wilbur and Orville confirm the existence of tangential force.
- Wilbur estimates they will need at least an engine weighing one hundred pounds.
- He estimates the first flying machine will only reach low speeds.
<u>Explanation:</u>
Key idea 1 introduces the main idea of travel and states that land and water travel were taken care of in the nineteenth century, leaving air travel by implication, which is stated in the next idea. It is further elaborated in detail in the third point which explains the aspect of the problem that needed to be solved. The fourth idea introduces Wilbur and Orville and states their findings on the existence of tangential force, elaborating the former's estimates in the fifth and sixth key points.
<span>He was an English man born in April 1564, By Profession He was poet, playwright, and actor, widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist.
Hope this helps!</span>
Coastal upwelling occurs when the surface water is replaced by water rising along theshore.The surface water is often rich in nutrients, and prolonged wind can result in increasedbiological productivity.Upwelling can also influence the weather.Coastal downwellinghowever helps to drive water towards the coastline and be forced downward, returning seawardalong the continental shelf.This downwelling helps supply the deeper ocean with dissolvedgases and nutrients and it assist in the distribution of living organisms.Unlike upwelling,<span>downwelling has no direct effect on the climate or productivity of the adjacent coast</span>
