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IrinaK [193]
3 years ago
8

Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?

Biology
2 answers:
LekaFEV [45]3 years ago
5 0
Carbon dioxide is correct
Verdich [7]3 years ago
5 0

Answer:

dissolved carbon dioxide

Explanation:

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Are mutations always bad? explain your answer
mr_godi [17]
No.

This is because mutations not only help a species survive in certain conditions, but also allows diversity within a population. For instance, a bug species can develop a mutation to bug spray, allowing it to survive through its prey or killers. Therefore, ultimately benefiting and helping the species.

Hope this helps!
7 0
3 years ago
Does inner or outer plants have a rocky composition.
PIT_PIT [208]

Answer:

Do you mean planets?

if so,The heavy rocky particles within the inner part of the disk formed planetesimals and eventually, inner planets. In our solar system, the four innermost planets Mercury, Venus, Earth and Mars are known as inner planets. They lie inside the asteroid belt. They have volcanoes and valleys and are very hot compared to outer planets.Inner planets are much smaller than the outer planets, and are rocky with an iron core.

Hope that helps!

4 0
3 years ago
While water vapor is a necessary gas phase in the atmosphere for the hydrologic cycle, it is a natural greenhouse gas. Water vap
alisha [4.7K]

Answer:

Water vapor is a greenhouse gas, which absorbs the heat radiated from the earth's surface. It allows less heat to escape back to space by trapping the heat energy in the lower atmosphere and keeps the atmosphere warm.

Explanation:

Water vapor is formed through a process called evaporation. In this process, water from the ocean, rivers, and lakes evaporates to become water vapor using the energy from the sun. Water vapor also moves into the atmosphere by transpiration (plants) and sublimation (snow and ice).

The water vapor cools down and transforms into water droplets by a process called condensation, as it rises high in the atmosphere where the air is cooler. This water droplets that formed by condensation make up clouds.

When the earth’s surface get heated by the sunlight, some of the heat radiates back into the atmosphere and most of this heat is absorbed by gases in the atmosphere called green house gases. This process is called greenhouse effect, which keeps the earth warm. The green house gases mainly consists of carbon dioxide and water vapor. Water vapor absorbs the heat radiated from the earth's surface. It allows less heat to escape back to space by trapping the heat energy in the lower atmosphere and keeps the atmosphere warm.

The amount of water vapor in the atmosphere is directly proportional to the temperature. When addition of the other greenhouse gases causes a temperature increase (such as extra CO2 from fossil fuels), more water evaporates and this leads to an increase in water vapor which further increases the atmospheric temperature since water vapor is a greenhouse gas. So, water vapor is part of a positive feedback system.

8 0
3 years ago
The use of _____ during pregnancy is most associated with premature birth, low birth-weight infants, and fetal death. nicotine c
rusak2 [61]

The drug that is associated when having to intake it when pregnant that is likely causing premature birth, low birth weight infants and the fetal death is the use of nicotine. This type of drug is a form of agonist in regards with nicotinic acetylcholone receptors.

4 0
3 years ago
Read 2 more answers
Which describes an interaction in which two organisms that interact must use the same limtied resources​
liraira [26]

Answer:

   <u>Competition</u> describes an interaction in which two organisms that interact must use the same limited resources because they are competing for them.

Explanation:

7 0
3 years ago
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