Is the following sentence true or false? The composition of the atmosphere changes every few kilometers as you move away from earth.

Answers

Answer 1

Answer: This sentence is True because the air thins throughout the atmosphere.

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Describe a global warming

Answers

Answer:Global warming is the long-term heating of Earth's surface observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.

Explanation:

Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. true or false?

Answers

It is true that frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen.

The statement is - True.

The frost wedging is one of the processes that contribute to the physical weathering of the rocks. Basically, if the rock has a crack, water manages to get into that crack. On the places where there's winters and the temperature drops bellow zero, the water in the crack of the rock freezes. Because the ice is expanding, it creates a lot of pressure inside the rock. Because of this pressure, the rock eventually cracks into two or more pieces. There have even been recorded cases where this form of weathering resulted in explosion of the rocks, where the pressure inside the rock was so big, that it has literary exploded, but that is very, very rare.

Tsar Nicholas II and Tsarina Alexandra were the Romanov rulers of Russia when the Bolshevik revolution took place in 1917. During this revolution, Tsar Nicholas II was overthrown, and the majority of his family members were killed. The remains of two of the Tsar and Tsarina’s children, Alexei and Anastasia, were never found. Suppose two people came forward who claims to be the missing Romanovs. Which technology could only be used to identify Alexei? DNA technology STR analysis mtDNA analysis Y-chromosome analysis

Answers

Answer:

Option D, Y-chromosome analysis

Explanation:

In this technique, DNA is analysed in a way to study the hierarchical progression of Y chromosomes in the males . This methodology help in identifying the family background of any individual based on his/her gene analysis.

The Y chromosome is passed on from one generation to another in sons as sons have one Y chromosome and one X chromosome while daughters have two X chromosome one from the father and the another one from the mother.

It is convenient to study the Y chromosomes in male to identify the family background.

Hence option D is correct

D. Y-chromosome analysis
Hope this helps!! :)

How can we decrease the amount of atmospheric CO2

Answers

Answer:

less pollution

Explanation:

we need to 1. stop burning fossil fuels in to the air leading in air pollution, 2. stop industry's burnings to create goods, 3. stop burning of plastics and or any other trash, 4. stop dumping our trash into the ocean. 5. stop creating plastics and 6. use electric vehicles

plz i need brainiest so i hope this helps

Answer:

nah

Explanation:

nah

Prokaryotic cells reproduce by

Answers

Prokaryotic cells reproduce by binary fission , which includes the chromosomes splitting into two equal parts.

(PLEASE HELP IT IS DUE TODAY)1. Which statement best describes stem cells?

A. Stem cells are commonly found in the brain of adults.

B. Stem cells are flowing through our veins delivering oxygen to the other cells of your
body.

C. Stem cells are only found in prokaryotes.

D. Stem cells are unspecialized cells that have the potential to differentiate into a wide
variety of cell types.

Answers

Answer:

the answer to that one is D

Answer:

It might be A

Explanation:

It might be A because stem cells are usually found in brain, blood, bone marrow, muscle, skin, heart, and liver tissues.

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The process of _________________ cools the oceans. condensation sedimentation evaporation deposition

Will notices that crickets seem to chirp more frequently at night in June the they do in October he asks himself how do temperature changes affect how often crickets chirp if he were to perform an experiment which if theses statements would be the best hypothesis

Which body segment of an insect supports the legs and wings?