Answer:
the change in DNA code is called mutation
The hydrogen ion concentration of the following pH samples is as follows:
- 7 (a neutral solution) = 0.845
- 5.6 (unpolluted rainwater) = 0.748
- 3.7 (first acid rain sample in North America) = 0.568
<h3>How to calculate hydrogen ion concentration (H+)?</h3>
The pH is a measure of the concentration of the hydrogen ion (H+) in water. This means that a relationship exists between H+ and pH of a solution.
The mathematical relationship between pH and H+ concentration ([H+]) is as follows:
pH = –log [H+]
This means that the hydrogen ion concentration (H+) of the following pH values can be calculated thus:
- log 7 (a neutral solution) = 0.845
- log 5.6 (unpolluted rainwater) = 0.748
- log 3.7 (first acid rain sample in North America) = 0.568
Learn more about pH at: brainly.com/question/15289741
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Clouds are made up of tiny drops of water or ice crystals that settle in dust particles in the atmosphere.
Well, Since the fertility of the soil is obviously incorrect due to it being dirt, I say there is a big chance the answer is C, Since the number of pry population always is an abiotic limiting factor. Hope this helps :)
Answer:
the major source is moving water. option 3
