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raketka [301]
3 years ago
13

When in U.S, history did pollution start to become an issue? Explain why pollution was not an issue prior to this time period.

Biology
1 answer:
sasho [114]3 years ago
8 0

Answer:

pollution began to be a problem in 1800's.

Explanation:

more people meant more rubbish. industry also added to this

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Which physical properties do all-stars have? Check all that apply.
olga2289 [7]

Answer:

-Physical properties possessed by all stars:

  • They are made of gases such as hydrogen and helium.
  • They shine very brightly due to interaction of hydrogen and helium at appropriate pressure and temperature.
  • They contain iron in their cores which monitors the fusion reaction.
  • They make energy through fusion between the gases present in the stars which are hydrogen and helium.
  • They are not spherical in shape hence this physical property is false in terms physical properties of the stars.

Hope this helps. If it does, please mark me brainliest.

Explanation:

6 0
4 years ago
Assume a phenotype is determined by one gene with a dominant allele and a recessive allele. If one parent is homozygous recessiv
d1i1m1o1n [39]
<h2>Phenotype probability</h2>

Explanation:

  • In the given question,let say A is dominant allele and a is recessive  allele
  • Homozygous recessive parent(having both alleles recessive) will be denoted by aa genotype whereas heterozygous parent(one allele is dominant while other is recessive) will be denoted by Aa
  • When a cross is made between both the parents then the probability of offspring having the recessive phenotype will be 1/2 or we can say 50%

6 0
4 years ago
Where is the most energy transferred in a food web?
liberstina [14]
The last option would be correct
5 0
3 years ago
Read 2 more answers
What happens to an enzyme's structure as it<br> exceeds the typical human body temperature?
likoan [24]

Answer:

Enzyme structure begins to break down

Explanation:

The enzyme will begin to denature as the temperature in the body rises. Denaturing is when the physical structure of the enzyme loses its shape and prevents the lock and key of enzymes and substrates to occur.

3 0
3 years ago
List the structure and composition of the moon from surface to core
vodka [1.7K]
That's a pretty complicated question. I can give you what I know:

Inner Core (Solid form)
Outer Core (Liquid form)
Partial Melt (A form where some of the solid forms are interchanging between liquid and solid form)
Mantle (Solid form / Rock)
Crust (Solid form)

5 0
4 years ago
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