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andriy [413]
4 years ago
5

The best place to get preliminary information on a research topic.

Biology
1 answer:
Jlenok [28]4 years ago
3 0

the answer is c encyclopedia

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In 1968 how many tons of CFC's were produced in the untied states​
Mrac [35]

Answer:

nearly one million tons per year

Explanation:

Midgely would receive the Society of Chemical Industry’s Perkin Medal for this research in 1937; in 1941, he was awarded the Priestley Medal, the American Chemical Society’s highest award, for his contributions to chemistry.

By the early 1970s, CFCs were in widespread use, and worldwide production of the compounds had reached nearly one million tons per year, representing roughly a $500 million slice of the chemical industry.

3 0
3 years ago
Graph y = -2x +3 and its inverse.
Gnesinka [82]
The graph of y = -2x + 3 is a straight line

Its slope is - 2

Its y-intercept is + 3

To draw the line you can use these two points (0,3) and (3/2 , 0)

This line does ont pass through the third quadrant. It comes downward from the second quadrant, touches the y-axis at y =3, continues on the rirst quadrant, touches the x-axis at x = 3/2, and contiues into the fourth quadrant.


Graph of its inverse

Exchange y and x in the given function and solve for the new y

x = - 2y + 3 => y = - x/2 + 3/2

It is also a straight line;
Its slope is -1/2
Its y-intercept is 3/2

It is also in the second, first and fourth quadrant

Use these two points to draw the line (0,3/2) and (3,0).

You do not need to know to draw this, but the inverse of a function is its reflection through the line y =x.


  
6 0
3 years ago
What does 1 hour in the sun do to the human skin ncmbi?
Sladkaya [172]

It can damage collagen fibers, destroy vitamin A in skin, accelerate aging of the skin, and increase the risk of skin cancers. Excessive sun exposure can also cause cataracts and diseases aggravated by UVR-induced immunosuppression such as reactivation of some latent viruses.

3 0
3 years ago
In what way does plant nutrition differ from human nutrition? choose the best answer.
adoni [48]

Answer:

Plants make their own nutrients; humans must consume theirs. ... It transports water and nutrients from the roots to the leaves.

3 0
3 years ago
Explain how a starfish's body plan and anatomy's function very essential to its survival.
Ksenya-84 [330]
All starfish limbs are designed to do have the same function, which means that in case a limb is severed, the other arms can make up for it until the arm regrows, which it does after a while. They are all connected to the center of the starfish which should not be damaged.
4 0
3 years ago
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