Sediment discharge was historically approximately 270 million cubic meters/year of suspended load and 130 million cubic meters/year of bedload. This has decreased 80% since 1850 and can be divided into three periods: historical period (pre 1900), pre-dam period (1932-1952), and post dam (1963-1982). Suspended sediment loads declined 43% between the historical and pre-dam and 51% from pre-dam to post-dam periods. The size of sediment also decreased drastically including a 72% decrease in the sand fraction. Most of this is due to dams on the tributaries acting as sediment traps primarily for the coarser sediments. Large-scale land clearing for agriculture contributed to increased sediment loads in the historic period.

5 0

3 years ago

A team of astronomers discovers a new planet with water. They notice that the process of evaporation does not seem to be working

olya-2409 [2.1K]

Answer:

A team of astronomers discovers a new planet with water. They notice that the process of evaporation does not seem to be working on this planet. Which statement best explains the state of the water cycle on this newly discovered planet?

The water is trapped as water vapor in the atmosphere and clouds.

Hope this helps!

6 0

2 years ago