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iren [92.7K]
3 years ago
8

The public is not yet able to purchase cars powered by hydrogen fuel cells because engineers have to determine how the cars perf

orm based on which scenario? on racetracks in real-world conditions in flooded environments on closed courses
Biology
2 answers:
alukav5142 [94]3 years ago
5 0

Answer:

B - In real world conditions

Makes the most sense.....

nikdorinn [45]3 years ago
5 0

Answer:

the answer is b

Explanation:

it's on edge  just did it

UwU hope this helps yall

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Carbohydrates and fats both
alexdok [17]

Answer:

can be used as an energy source by organisms.

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8 0
2 years ago
Please fully explain the answer​
Amanda [17]

Answer:

thermal energy to heat our homes; mechanical energy to transport people and things; and electrical energy to power just about every other technology we use.

Explanation:

8 0
3 years ago
Why do you think the acceleration due to gravity is represented by a negative number?<br> 20 points
BigorU [14]
When you drop a ball, it is dropped DOWNWARDS so the number is represented by a negative number. If you toss the ball up it will be a positive number.  

To answer your question: 
When an object is dropped downwards there will be a negative number since the object is falling downwards.  
8 0
3 years ago
Read 2 more answers
Which type of active transport moves materials out of a cell? which type of active transport moves materials into a cell? which
Shalnov [3]
Exocytosis moves materials out of a cell.
Endocytosis moves materials into a cell.
Active transport uses carrier proteins. (not entirely sure about this one... check it out to be sure)
Molecules move from an area of high concentration to an area of low concentration by passive transport. 
5 0
3 years ago
Two women are comparable in age, body conformation, and are pregnant at the same time, but one experiences stretch marks, while
adell [148]

The question is incomplete as it does not have the options which are:

a. The woman with stretch marks has a greater collagen-to-elastic fiber ratio.

b. The woman may have different gender babies.

c. The woman with less stretch marks has larger skin cells.

d. The woman without stretch marks has more cholesterol in her diet, which affects her cell membranes.

Answer:

The woman with stretch marks has a greater collagen-to-elastic fiber ratio.

Explanation:

The stretch marks on the hips, stomach and breast of pregnant women is a very common problem. These stretch marks appear pinkish in color which is very difficult to treat.

These stretch marks are the result of the collagen to elastin ratio which increases and stretches. This stretching happens due to the sudden or rapid increase in the weight of the body or the affected portion.

Thus, the selected option is correct.

4 0
3 years ago
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