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sleet_krkn [62]
3 years ago
15

Government programs to reduce acid rain have resulted in cleaner emissions from u.s. industries in recent years. as a result, th

e sulfate concentration in rainwater has declined significantly. but the sulfate concentration in some lakes is showing little, if any, change. why might this be true?
Biology
1 answer:
8090 [49]3 years ago
4 0
This is true because certain manufacturing companies and other industries still donot comply with the governmental regulations and release the toxic wastes containing sulfates, into the water bodies. This contaminates them and the maximum allowed sulfate level of the water body exceeds its limit. 
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Whitch of the following statements are true?
maria [59]

Answer:

All the statements are true except the second i. e. the soil quality in an ecosystem Does not matter as much as soil quantity.

Explanation:

In an ecosystem both quality and quantity of water is very important. If the quality of water is not suitable, that it contains polluted substances so the health of the organism such as fishes and other aquatic animals will adversely affected and sometimes dealth occurs and the ecosystem will be negatively affected.

5 0
3 years ago
Why are math assignments like the water that is found on the ground in the early morning?
VikaD [51]
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3 years ago
A) In how many cases in the genetic code would you fail to know the amino acid specified by a codon if you knew only the first t
Vesna [10]

Answer:

a) 28 cases

b)  3 cases

Explanation:

a) From the table of genetic codes, there are 28 codons that specify more than one amino acid assuming only the first two nucleotides are considered. In these cases, one cannot outrightly specify the amino acid the genetic codes are coding for without knowing the last nucleotide of the codes. <em>For example, UU can be for Phenylalanine or Leucine, CA can be for Histidine or Glutamine, etc. </em>

b) From the table of genetic codes, the first two nucleotides of Arginine can be either of CG or AG, that of Serine can be either of UC or AG while that Leucine can be either of CU or UU. Only in these <u>3 cases</u> would one fail to know which are the first two nucleotides assuming the name of the amino acids are given.

<em>See the attached image for the genetic code.</em>

7 0
3 years ago
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dimaraw [331]
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3 0
3 years ago
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lana66690 [7]

Biological structures like DNA, proteins and cells all depend on molecules. ... Neurotransmitters like epinephrine are pretty simple molecules, but without them our nervous system couldn't work. Oxygen, containing just two oxygen atoms, is a very simple molecule, and it is certainly essential to living things.

3 0
3 years ago
Read 2 more answers
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