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insens350 [35]
3 years ago
6

How has human interaction affected the Mississippi Delta?

Biology
1 answer:
BaLLatris [955]3 years ago
5 0

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.

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Which of the following is TRUE? Species on Earth today are just a fraction of all species that ever lived. The number of species
Orlov [11]

Answer:

Until recent history,extinctions have always happened gradually and on a small scale.

Explanation:

Extinction occur when environmental factors like natural disaster,habitat fragmentation,over exploitation,global change don't favor the survival of species thus gradually leads to extinction of species.

Some times human activity becomes the major problem for extinction.More over,poor reproduction,decline in population number and genetic inbreeding also leads to extinction.

99% of all species that exist on earth become disappeared.

Evolution leas to speciation which leas to formation of new species but species become extinct when they are unable to survive against competition.

8 0
3 years ago
The following are the bases on one side of the DNA molecule. List the bases that would be on the opposite side of the DNA. G- C-
kykrilka [37]

Answer:

C-G-A-G-T-C-C-G-C

Explanation:

The letters each have their own opposites. T is always the opposite of A. G is always the opposite if C

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3 years ago
Joe is color blind. both his mother and his father have normal vision, but his mother's father (joe's maternal grandfather) is c
Arte-miy333 [17]
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3 years ago
Due to the fact that these bacteria are adapted to extreme habitats, where are you most likely to find bacteria belonging to the
Assoli18 [71]

The answer to the above question is in a hot spring.

<h3>What is a habitat?</h3>

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To learn more about habitat with the help of given link:

brainly.com/question/728057

#SPJ4

6 0
2 years ago
How does prokaryotic cell division differ from eukaryotic cell division?
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2 years ago
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