Answer:
The correct answer is the third statement.
Explanation:
This is because the first and last statements are completely incorrect as irrigation systems had to do with routing water from streams and lakes, into farms in order to hydrate plants. The second answer is technically correct in my opinion, because once flood season came farmers used irrigation lines to re-route water to reservoirs or other places besides their farms. Although, this was not the main purpose of irrigation systems.
<u>Answer:</u>
<em>The appropriate response is gravity: an undetectable power that pulls objects toward one another.</em>
<u>Explanation:</u>
Thus, the closer items are to one another, the more grounded their gravitational draw is. Earth's gravity originates from all its mass. <em>All its mass makes a consolidated gravitational draw on all the mass in your body.</em>
The power/mass proportion is the equivalent for each. A straightforward guideline to hold up under as a primary concern is that all items <em>(paying little heed to their mass)</em> experience a similar increasing speed when in a condition of free fall.
<em>At the point when the main power is gravity, the speeding up is a similar incentive for all articles. On Earth, this speeding up worth is 9.8 m/s.</em>
Answer:
1991, because that is when the Soviet Union began producing fewer nuclear weapons.
Explanation:
OR C