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natima [27]
3 years ago
11

Why do we need development.​

Social Studies
1 answer:
Soloha48 [4]3 years ago
7 0
If we means us as humans, we need it to stimulate our brains for change and to grow as a race. We need development to become lazy ultimately we just don’t want to have to work as hard
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Technological advances are eliminating what kind of jobs?
Tcecarenko [31]
Technological advances are eliminating jobs related to human labor. This is a real fact and it cannot be denied. Manual labors have decreased with the advancement of technology. The technological advancement has improved the quality of work and time. The increase in speed has catered to the needs of the market at a faster rate and thus the business community has also reaped in major profits.
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3 years ago
Until the mid-20th century the largest impediment to trade between sahara desert and sahel was...
Lena [83]

Answer: A) Climate

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5 0
3 years ago
Which statement about the statuses of the Manchu and Han ethnic groups under the Qing dynasty is correct?
galina1969 [7]

Answer:

D

Explanation:

8 0
2 years ago
What effect does the addition of surfactant have on the airflow? How well did the results compare with your prediction?
MissTica

Answer:

Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation.  Airflow increased as predicted.

Explanation:

Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:

(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and

(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.

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3 years ago
Farmers who moved from place to place to harvest fruits and vegetables were called
AleksandrR [38]
The answer is migrant workers. Hope this helps:)
4 0
3 years ago
Read 2 more answers
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