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4 years ago

WILL MARK BRAINLIEST!!! Valleys cut by rivers are "V" shaped. True False

1 answer:

8 0

V-shaped valleys and river plain valleys are formed by flowing water. ... They are created by fast flowing rivers with steep gradients. As rivers flow downhill quickly, they remove more sediment from the bottom of the stream channel than from the sides. This process is called down cutting.

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World oil reserves amount to about 10,000 EJ, and humankind uses energy at the rate of roughly 18 TW. If all our energy came fro

Volgvan

Answer:

t=17.61 years.

Explanation:

Given that

Reserve of energy = 10,000 EJ

Energy used by human = 18 TW

We know that

$1\ E= 10^{18}$

$1\ T= 10^{12}$

$Reserve\ of\ energy = 10,000 \times10^{18} J$

$Reserve\ of\ energy = 10^{22} J$

$Energy\ used\ by\ human = 18 \times10^{12}\ W$

Lets t time after energy will be exhaust

$18 \times10^{12}\times t=10^{22}$

$t=\dfrac{10^{22}}{18 \times10^{12}}\ s$

$t=5.55\times 10^8 \ s$

We know that

1 year = 365 days

1 year = 365 x 24 hr

1 year = 365 x 24 x 3600 s

$1year =3.15\times 10^7\ s$

$t=\dfrac{5.55\times 10^8 }{3.15\times 10^7}$

t=17.61 years.

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3 years ago

Question 9 Multiple Choice Worth 3 points)

otez555 [7]

Answer:

D deposition

Explanation:

3 0

3 years ago

Read 2 more answers

What was the purpouse of both the truman doctrine and the marshall plan was to

Rina8888 [55]

Answer:

The purpose of both the Truman Doctrine and Marshall Plan were to curb the spread of Communism.

Explanation:

The Truman Doctrine was an American foreign policy which stated purpose was to contain Soviet geopolitical expansion during the cold war.

The Marshall Plan was a Economic recovery plan to help recover Western Europe's devastated economy after WW2, and was only available to non-communist nations

3 0

3 years ago

Oxygen makes up about _____ percent of earth's atmosphere.

Tema [17]

21%............................

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3 years ago

Would it be possible to make diamonds into a coil or a thread of some kind? I don't need answers but I need answers.

LuckyWell [14K]

Answer:

I dont think so but maybe

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3 years ago