Explanation:
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.

yeh American server h yha koi tumahri hindi nhi samjhega-,-..xD
Answer:
Well to give a good example of "ecosystem increases its biodiversity" we must first define
biodiversity
"the variety of life in the world or in a particular habitat or ecosystem."
SO an example would be like bringing a frog from china to a pond in amercia,but this frog is new and there arent any frogs from the speicus
Answer:
Organism
Explanation:
An individual palm tree grown in a tropical forest is regarded as an organism. This answer is gotten from the definition of an organism. An organism is defined as an individual living thing, which could be an animal, a plant, or a one celled creature. An individual palm tree is an organism because individually bit has all properties of life and can respond to stimulus.
The best answer to the question above would be letter d. The sentence presented which is 'Researchers helped further the biological perspective when they demonstrated that electrical stimulation of the brain could evoke emotional responses in animals.' demonstrates how new discoveries can influence perspectives.