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Vlad [161]
3 years ago
9

Which energy source produces carbon dioxide?

Chemistry
1 answer:
HACTEHA [7]3 years ago
4 0
The answer is d. natural gas. All the other choices are alternative sources of energy, and do not produce or emit any greenhouse gas such as carbon dioxide (CO2). Natural gas, on the other hand, is an organic substance containing a significant amount of carbon, that when burned for fuel, results in the emission of CO2.
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What kind of value does biodiversity have within an ecosystem?
german

Answer:

A. Ecological value

Explanation:

3 0
3 years ago
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What is the kinetic energy of a 25 kg object moving at a velocity of 2.5 m/s?
vovangra [49]

Answer:

<h2>78.13 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

m is the mass

v is the velocity

From the question we have

k =  \frac{1}{2}  \times 25 \times  {2.5}^{2}  \\  = 12.5 \times 6.25 \\  = 78.125 \:  \:  \:  \:  \:  \:  \:  \:

We have the final answer as

<h3>78.13 J</h3>

Hope this helps you

6 0
3 years ago
A student decreases the temperature of a 547 cm3 balloon from 590 K to 210 K.
gtnhenbr [62]

Answer:

≈194.7

Explanation:

(547cm^3/590K) / (V2/210K)

V2 = 194.69 or 194.7

:D

4 0
2 years ago
Which best describes what solar systems are comprised of
PIT_PIT [208]
The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas. Everything in the Solar System orbits or revolves around the Sun. The Sun contains around 98% of all the material in the Solar System.
5 0
3 years ago
What occurs to the kinetic energy when the mass moving object is doubled?
seraphim [82]

Answer:

Kinetic energy increases.

Explanation:

Kinetic energy is energy you get from moving. The equation for KE depends on mass as well as velocity. If you increase one of these factors, KE will increase too.

5 0
3 years ago
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