The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
<u>Answer:</u>
The state governments and the federal government are required to work together to ratify the constitutional amendments.
<u>Explanation</u>:
- An amendment to the constitution can either be proposed by the United States Congress or by at least 38 of the 50 state governments.
- No matter who proposes the amendment, it has to be ratified by at least 2/3rd of the existent state governments and also the United States Congress for it to become a part of the Constitution.
Answer: b. biological control.
Explanation:
No,northerly wind blows from north to the south!!!(p.s winds are named from the direction from which they come,followed by the suffix -erly for example wind from the north are called northerly winds(north+ -erly)
