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2 years ago

15

90 percent of Australians live in

2 answers:

Marizza181 [45]2 years ago

8 0

The answer is B. coastal cities.

iren [92.7K]2 years ago

4 0

Answer:

Coastal cities

Explanation:

experience :)

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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

$1\ E= 10^{18}$

$1\ T= 10^{12}$

So

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

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

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

Lets t time after energy will be exhaust

So

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

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

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

We know that

1 year = 365 days

1 year = 365 x 24 hr

1 year = 365 x 24 x 3600 s

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

So

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

t=17.61 years.

5 0

3 years ago

If a triangle has 2 80 degree angles what degree will the third angle be?

Softa [21]

A triangle’s angles are equivalent to 180 degrees so the third angle would have to equal 20 degrees

6 0

2 years ago

Which of the following air masses is most likely to produce a blizzard?

NARA [144]

Answer:

cP

Explanation:

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3 0

2 years ago

Nady [450]

It’s the second one hurry

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3 years ago

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Cyanobacteria increased the levels of carbon dioxide in the atmosphere. please select the best answer from the choices provided

Marrrta [24]

i think it is false

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2 years ago

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