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Alchen [17]
2 years ago
14

What happens to air that causes high-pressure systems?

Biology
1 answer:
Step2247 [10]2 years ago
5 0
Answer: Areas of high and low pressure are caused by ascending and descending air. As air warms it ascends, leading to low pressure at the surface. As air cools it descends, leading to high pressure at the surface.

Paragraph: High and low pressure systems cause day-to-day changes in our weather. In this article, we look at how they are defined and how they form.

What do we mean by 'pressure'?

The Earth's atmosphere exerts pressure on the surface. Pressure is measured in hectoPascals (hPa), also called millibars. Standard pressure at sea level is defined as 1013hPa, but we can see large areas of either high or low pressure. These areas are all relative to each other, so what defines a high will change depending on the area around it.

Weather chart

On a weather chart, lines joining places with equal sea-level pressures are called isobars. Charts showing isobars are useful because they identify features such as anticyclones (areas of high pressure) and depressions (areas of low pressure).

Ascending and descending air

Areas of high and low pressure are caused by ascending and descending air. As air warms it ascends, leading to low pressure at the surface. As air cools it descends, leading to high pressure at the surface.

In general, low pressure leads to unsettled weather conditions and high pressure leads to settled weather conditions.

Anticyclone (high pressure)

In an anticyclone (high pressure) the winds tend to be light and blow in a clockwise direction (in the northern hemisphere). Also, the air is descending, which reduces the formation of cloud and leads to light winds and settled weather conditions.

Depression (low pressure)

In a depression (low pressure), air is rising and blows in an anticlockwise direction around the low (in the northern hemisphere). As it rises and cools, water vapour condenses to form clouds and perhaps precipitation. This is why the weather in a depression is often unsettled, there are usually weather fronts associated with depressions.

Facts about air: The atmosphere of Earth, commonly known as air, is the layer of gases retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere.
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Answer:

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I hope this helps

Explanation:

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2 years ago
During the process of translation in a eukaryote messenger RNA is spliced in the nucleus. amino acids are synthesized by RNA pol
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mRNA interacts with ribosomes in the cytoplasm.

Explanation:

<em>The correct option would be that mRNA interacts with ribosomes in the cytoplasm.</em>

Translation involves the use of genetic codes in mRNA to synthesize amino acids that are eventually linked together by polypeptide bonds to form proteins.

<u>During translation, the mRNA synthesized in the nucleus is transported into the cytoplasm where it gets attached to the ribosome and another RNA - the tRNA. The codons on the mRNA eventually match with the anticodon of the tRNA with the later releasing the amino acid that corresponds to each codon</u>.

Hence, the correct answer out of all the options is that mRNA interacts with ribosomes in the cytoplasm.

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3 years ago
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Whats the mixture?? Tho
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3 years ago
Which excerpt uses actions to develop Marlene's character? A. "I wish my parents were more like Kat's," Marlene confessed. "They
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And C is ruled out because it isn't Marlene's action it's Tami's therefore the answer is D. D also develops Marlene's character as it shows her anxiety and her caring nature towards her cat.

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4 0
2 years ago
I need help asap please help
Morgarella [4.7K]

Answer:

The answer is A

Explanation:

Less genetical diversion isnt good

4 0
2 years ago
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