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Rufina [12.5K]
3 years ago
9

Identify and briefly describe three (3) of the main contributors to ground water pollution.

Biology
1 answer:
Marina CMI [18]3 years ago
7 0

Answer:

Water pollution may be defined as the contamination of the unwanted substance or pollutant with water that changes the normal characteristics of water. Three main contributors of ground water are as follows:

Chemical farming: The use of pesticides and fertilizers in the fields and its direct run off in river and groundwater causes the water pollution.

Industrial waste: The industrial waste consists of harmful chemicals and heavy metals. The direct discharge of chemical waste in the lakes, ground water and ponds makes the water dirty and causes water pollution.

Effluent from waste water treatment plant: The effluent and the harmful chemical waste release from the waste water treatment plant is the major contributor to the ground water. The effluents mix with the ground water and changes the ground water property.

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brilliants [131]
Meiosis involves crossing over where chromosomes exchange genetic segments, resulting in different sets of chromosomes. Each time an egg or sperm created, it is different due to this recombination. Mitosis on the other hand is non-sex cells replicating exact copies of themselves which lead to no genetic variation as they aren't involved in producing offspring.
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Which Cell structures are seen in prokaryotic and eukaryotic cells
Marta_Voda [28]

Answer:

a plasma membrane, also called a cell membrane, and cytoplasm.

Explanation:

DNA

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Which of the following best describes how crossing over occurs during meiosis?
kkurt [141]

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first give the following options bro..

7 0
3 years ago
What theory was developed around the idea that some eukaryotic organelles evolved from prokaryotic organisms?
tigry1 [53]
The theory would be endosymbiont theory. It was developed on the idea that some eukaryotic organelles come from prokaryotic organisms. It is also known as symbiogenesis. This theory says that these organelles were first from prokaryotic cells that is living inside a host cell.
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3 years ago
An island nature preserve brings in 72 NA warblers and 252 SA warblers. Out of the 72 NA birds, 55 have long plumage. Out of the
nalin [4]

401 of these offspring are expected to have long plumage.

To calculate the number of these offspring that are expected to have long plumage the following cross multiplication calculation must be performed:

  • Total birds = 72 + 252 = 324
  • Long plumage birds = 55 + 75 = 130  
  • 324 = 130
  • 1000 = X
  • 1000 x 130/324 = X
  • 130000/324 = X
  • 401.23 = X

Therefore, 401 of these offspring are expected to have long plumage.

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