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3 years ago

Do the islands appear to be the same age, or are they older at one end of the chain or another? Explain what

Biology

1 answer:

AlekseyPX3 years ago

6 0

Answer:

Some islands have older islands at one end of the chain and younger islands at the other end. Example is the Hawaiian Islands.

Explanation:

Volcanic mountains or islands are formed when the tectonic plates in the earth’s crust converges. The string of Hawaiian volcanic islands were formed as a result of the movement of the Pacific plate over a fixed hotspot, where the magma rises upward and erupts on the seafloor. The northwestern islands are older than the islands to the southeast side of the Hawaiian islands.

The age of a volcanic rock is calculated by measuring the amount of argon and the amount of radioactive potassium present in the rock. These measurements are the supporting evidence which showed that the southeastern end of the chain is younger than the northwestern part of the chain. The volcanic islands gradually subside and erode as they age, so the older islands have much lower elevations than the newer islands. This is another evidence which supports the conclusion.

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valentinak56 [21]

<u>Condensation</u> is the next step in the water cycle that is most likely to happen next as water molecules evaporate from a lake near the equator and rise into the atmosphere, as shown in the diagram below. and as the molecules travel away from the equator.

Explanation:

As the warmer air mass rises into the upper atmosphere, at the equator, it begins to cool because temperatures drop with altitude. The relative humidity of the air mass increases until it reachesdew point. The water vapor begins to condense into water droplets.

This air mass begins moving towards the poles (away from the equator) bringing with it clouds (condensed water vapor) that precipitate later on. This air mass begins to sinks because it has become denser with a decrease in temperature. As it sinks it replaces the air mass moving to the equator. The air rushing to the equator is replacing the rising warm air mass at the equator. This cycle continues.

Learn More:

For more on the water cycle check out;

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4 0

3 years ago

Enter the correct 4 digit code (no spaces)

-Dominant- [34]

Answer:

as a teacher i can help

Explanation:

q1 is d, a phenotype is how you look, so its 4. q2 is b, its one possiblity out of 4, so its 1. q3 is a, thats a pedigree chart, so its 7. q4 is c, if they both are expressed they are co dominate, so its 2.

7 0

3 years ago

At the cellular level, cells produce carbon dioxide in the process of cellular respiration.

julsineya [31]

C there your answer i hope it help

4 0

3 years ago

PLEASE I NEED the answers

pentagon [3]

Number 1 , is C

Number 2 , is A

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3 years ago

Which DNA fingering technique examines the length variation of DNA repeat sequences in human DNA?

DiKsa [7]

Answer: The question is incorrect, below is the correct question

Which DNA FINGERPRINTING technique examines the length variation of DNA repeat sequences in human DNA?

The correct answer to the question is option D

mtDNA (mitochondrial DNA) analysis

Explanation: DNA fingerprinting technique is a laboratory technique used by geneticists.it entails placing of DNA samples into wells,these wells are then placed in a slab of gels and thereafter passing a current through the gel.This is done to ascertain the uniqueness of a DNA pattern and thus be able to differentiate people of same species.

There are several methods of DNA fingerprinting as outlined in the options given with the question.

In mtDNA (mitochondrial DNA) analysis,The Genetic samples are extracted from the biological materials, these samples extracted are total genomic DNA like hair,tooth or samples of blood, Several copies of these genomic DNA are then produced using a polymerase chain reaction and flanking primers inorder to examines the length variation of DNA repeat sequences in human DNA.

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3 years ago