Please explain the difference between Migration and Circulation.​

Rivers of drainage system. option- 1 sao francisco 2 amazon 3 subarnarekha 4 uruguay

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz