When a flood occurs, the stream is getting much more water, and on the parts where the angle of fall is greater and the stream is faster, because of the greater amount of water, and thus force, it managed to take with it much bigger amount of sediments, and also much bigger pieces of it.
The transportation depends on the speed and force of the water, and when there is a flood. both of those are bigger, so the stream is able to carry more sediments over a longer distance, but also over a wider area as the waters are getting out of the normal river flow and flood the valley.
The reason why some places are warmer than others is that some places are closer to the sun like the equator and other is far like the poles.
Answer:
(D) Decreasing populations may cause an economic decline, prompting many citizens to emigrate to other more developed countries and decreasing the working-age cohorts.
Explanation:
- From the bell-shaped population pyramid of Japan, the population of 2019 was about 126,265,000, a decline in the crude birth rates, and an increase of death rather than later led to the stabilization of the population pyramid and has created an aging population in Japan.
- This is due to internal migration and due to the advancement in technology and increasing use of robots in manufacturing activities has lead to long hours of work.
- This has lead to a decrease in the drop in population. It's estimated that by 2060 japan will have 40% of population aged above 65 years.
Answer:
After three half-lives, it is 7:1
Explanation:
- The rate at which the decay of the radioactive isotope is said to be half-life and is represented as the half-life of the atoms and the matter to disintegrate itself.
- The two radioactive isotopes are K 40 and Ar 40. After the K-Ar dating, they contain minerals such as the clay mica and the temphra minerals and Half-life of the K 40 is 1.3 more than 100,000 years i.e 10x9 years for Ar 40.
- <u>Thus the K 40 has to divide as three half-lives have passed if the ratio of argon to potassium atoms is 7:1. At the end of one half-life, the ratio of the number of argon to potassium atoms is 1:1. and two half lives its 3:1 thus after the third half-life it becomes as 7:1.</u>
Answer:
haha how to take a screen shot!!!!
Explanation: