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3 years ago

What is the coldest layer of the Earth's atmosphere?

Biology

2 answers:

damaskus [11]3 years ago

8 0

The mesosphere is coldest, reaching temperatures of -90 degrees Celsius

Lina20 [59]3 years ago

5 0

Answer:

The correct answer is mesosphere.

Explanation:

The atmosphere exhibits five distinct layers, which are determined by the modifications in temperature that take place with the upsurging altitude. These are troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Of the mentioned layers, the mesosphere, that is, the layer present above the stratosphere is considered as the coldest layer of the atmosphere. The coldest portions of the atmosphere are situated in this layer and can reach up to -90 degree Celsius.

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Which is a type of event that could cause sudden changes in Earth's global climate?

marishachu [46]

Your answer is continental drift

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3 years ago

A virus is living inside it's host cell and is able to survive and reproduce . What happens when the same virus is removed out o

Vesnalui [34]

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4 years ago

Which conditions are required for natural selection? Check all that apply.

olasank [31]

Reproduction, Heredity, Variety in fitness of population, and variety in characters among the population are all four conditions for natural selection.

6 0

3 years ago

Read 2 more answers

This process produces four new cells with half of the chromosomes as the parent cell.

Tanzania [10]

This process is known as meiosis, used to create sex cells.

Hope this helps!

6 0

3 years ago

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In a cross between two heterozygous tall and purple flowers (TtPp x TtPp), what would the

Goryan [66]

Answer:

9:3:3:1

Explanation:

This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).

According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:

TtPp - TP, Tp, tP, tp

Using these gametes in a punnet square, the following proportion of offsprings will be produced:

T_P_ (tall, purple) = 9

T_pp (tall, white) = 3

ttP_ (short, purple) = 3

ttpp (short, white) = 1

Hence, the ratio of this cross is 9:3:3:1

5 0

3 years ago