Answer:
Option C
Explanation:
For chagarff's rule, it clearly states that DNA from any cell of any organisms be it prokaryotes or eukaryotes should have the basic 1 (purine): 1 (pyrimidine) ratio. Particularly, amount of adenine should be equal to thymine, and guanine equal to cytosine. This is in particular reference to organisms that have double stranded DNA.
Answer: Hello Luv.......
How whales and dolphins evolved for life at sea ... important ways to allow these animals to transition from terrestrial to aquatic environments.
Explanation:
From tropical corals to tawny owls, some species are already being pushed to ... For instance, an experiment growing brewer's yeast in environments with deadly ... Before there was "Climate Change" there was STILL evolution. ... and Horses Dig Wells That Provide Water for a Host of Desert Species.
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Mark me brainest please...
Anna ♥
Answer:
3. Household wastes
2. Landfills
1. Agriculture
Explanation:
The groundwater is more and more contaminated, and there are numerous ways in which the contamination occurs. The causes of pollution mainly come from the human activities. The humans use all sorts of chemicals, fossil fuels, paints, and often there is waste from them, waste that is dumped into the drainage, and occasionally reaches the groundwater. The leaking of linings also manages to cause lot of damage, as very often it can reach the groundwater, causing heavily contamination of it. The agriculture, as much as it is needed, is a big polluter too, and the pollution mainly comes from the usage of pesticides, herbicides, and fungicides, which wash through the soil and end up in the groundwater.
