1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ksivusya [100]
3 years ago
11

(PLEASE HELP ASAP) (WILL GIVE BRAINLIEST AND THANKS) As an airplane rises through the atmosphere, machines cause the pressure in

side the cabin to decrease. As the airplane descends toward Earth, machines cause the pressure inside the cabin to increase. Based on your observations from the Can Crush Lab, explain why these changes in pressure are necessary.
Biology
1 answer:
34kurt3 years ago
6 0
Well, from what I know..
In high elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. Most of the atmospheres molecules are held close to the earth's surface by the force of gravity and hence air pressure decreases rapidly at first, then more slowly at higher levels.
Sooooo if the pressure in an airplane cabin isn't changed, it can cause injury or harm to passengers and oxygen equipment is required above 8,000 altitude.
You might be interested in
A science class investigated the relationship between the amount of time
zaharov [31]

Answer:

A. Based on our results, students who do 1 hour of chores per night

have grades that are on average 0.2 points higher than students

who do no chores.

Explanation:

In a scientific experiment that employs the scientific method, series of steps should be followed. The steps involved in the scientific method include; making an observation/asking a question, formulating a hypothesis, testing the hypothesis, analyzing the result, drawing a conclusion etc.

From this step, we would notice that DRAWING CONCLUSION immediately follows the analysis of result, which means the conclusion is based on the result of the experiment. A conclusion in a scientific experiment should be factual and based on the measured result. It should either reject or accept the hypothesis.

The best representation of a conclusion is A. Based on our results, students who do 1 hour of chores per night have grades that are on average 0.2 points higher than students who do no chores. This statement has a conclusive content unlike other options that still seemed unlikely.

8 0
3 years ago
The diagram below shows the positions of Earth, sun, and moon during two types of tides. The picture on the left is labeled Tide
Free_Kalibri [48]

Answer:

c. the gravitational forces due to the sun and the moon cancel each other's effect

Explanation:

The two diagrams represent Neap tides. Neap tides occur when the Sun, the Moon and the Earth are aligned at right angles. Moderate tides are formed because the bulge due to gravitational pull of the Sun cancels the bulge due to moon. The difference between the high tides and the low tides is the smallest.

5 0
2 years ago
Which scientist determined that the farther a planet is from the sun, the longer it takes to orbit the sun?
Misha Larkins [42]

Answer:

Kepler

<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>

6 0
3 years ago
Read 2 more answers
The scientist who proposed the chromosomal theory of inheritance​
11Alexandr11 [23.1K]

Answer:

Thomas Hunt Morgan

Explanation:

  • The chromosome theory of inheritance, or the idea that genes are located on chromosomes, was proposed based on experiments by Thomas Hunt Morgan using Drosophila melanogaster, or fruit flies.

#CarryOnLearning

3 0
2 years ago
What is one reason Earth can support life?
Klio2033 [76]

Answer:

its gives us oxygen witch most thing take to stay alive

7 0
2 years ago
Other questions:
  • Which statement most correctly describes surrogacy
    5·1 answer
  • describe how natural selection can sometimes lead to persistence of harmful or even lethal allele include exampple
    13·1 answer
  • in garden pea plants,tall plants are dominant to short ones. in the cross of a heterozygous plant with a short plant, what % of
    5·1 answer
  • Choose the sentence that does not describe a structural adaptation. A. An elephant has a long trunk that it uses to reach leaves
    15·2 answers
  • Pls help me answer this question and pls put an explanation!!!!
    12·1 answer
  • Create a Venn diagram comparing and contrasting plant and animal cells
    15·1 answer
  • Which of the following surrounds the individual muscle cell?
    15·1 answer
  • Please help with this question, thank you. ​
    8·1 answer
  • The cell cycle has a regular system of checks and balances that prevents damaged or mutated cells from proceeding to the next ph
    10·1 answer
  • How is glucose transported to different cells? And how do you know?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!