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nadya68 [22]
2 years ago
12

Explain the method scientists use to study how Earth’s atmosphere and climate have changed during the past million years.

Biology
1 answer:
Elanso [62]2 years ago
4 0

Answer:

There are many methods used by the scientists to study the change of earth's atmosphere and climate over the past million years. The study is called paleoclimatology. Since there are no measurement tools during those era, it studies the past by using proxy data. Proxy data includes earth's sediments, tree rings, historical archives, ice cores, and etc.

Explanation:

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frez [133]

Answer: As a body cell grows, the ratio of SURFACE AREA to volume INCREASES. Before it grows to large, a cell will divide into two DAUGHTER cells. So that each new cell receives its own genetic instructions, the cell REPLICATES or copies, all of its DNA.

Explanation:

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3 years ago
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Ou have a 44-year old male client with a resting heart rate of 68 bpm. if using the heart rate reserve method (karvonen formula)
mariarad [96]

The intensity range would be 60-80%.

A high resting heart rate is indicative of an inefficient heart or possible arrhythmia. Physical activity assessments should begin after the client has been screened and resting measurements have been assessed.  Moderate intensity exercise uses energy 3 - 6 times that of resting metabolism, which equates to 3 -6 METs. 

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3 years ago
How have the factors that trigger an asthma attack changed since the 1900s? As a researcher, how would you put together the clue
eduard

so if you look up things that can cause an asthma attack it will also show that viruses and bacteria are a cause. with asthma you lungs could already be inflamed as well as your air way wich makes it harder to breath. when you have c-19 it will inflame your lungs even more so it makes it even harder to breath given an asthma attack. more asthma attack now are probably caused by c-19 because it is all over the place and the percent of asthma attack by virus has dramatically increased.

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2 years ago
How do scientists use the kinetic theory of matter?
Keith_Richards [23]

The energy of moving matter is called kinetic energy. Scientists think that the particles of all matter are in constant motion. In other words, the particles of matter have kinetic energy. The theory that all matter consists of constantly moving particles is called the kinetic theory of matter. 

  • If particles do not have enough kinetic energy to overcome the force of attraction between them, matter exists as a solid.
  • If particles have enough kinetic energy to partly overcome the force of attraction between them, matter exists as a liquid.
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3 0
3 years ago
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How the seismic tracings recorded at station A and station B indicate that station A is farther from the earthquake epicenter th
VMariaS [17]

The seismic traces recorded at station A and station B indicate that station A is further from the earthquake epicenter than station B because the ground movement detected at B was greater than that detected at A, with seismic waves more frequent and less frequent respectively.

<h3>Seismograph</h3>

A seismograph is a device that detects ground movements, including those generated by seismic waves. It consists of the basic sensor of the seismographic instruments of which the seismograph and the seismoscope are part. These movements are then recorded in seismographs, which have been plotted graphs called seismographs.

<h3> Propagation speed</h3>

Seismic station A is located 5,400 kilometers from the earthquake's epicenter. How long would it take for the first S wave produced by this earthquake to reach seismic station A? The propagation speed of this type of waves varies with the medium in which they propagate, with typical values ​​of

  • 330 m/s in air
  • 1 450 m/s in water
  • and 5 000 m/s in granite.

They are not as destructive as S waves or the surface waves that follow them. The propagation speed of these waves is, in general, slightly less than twice that of S waves.

With this information, we can conclude the velocity of propagation of seismic waves and how a seismograph enumerates the distance from the epicenter of an earthquake.

Learn more about Earthquake in brainly.com/question/1296104

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