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EleoNora [17]
3 years ago
6

3. What is the original source of energy for all fossil fuels?

Biology
2 answers:
Rina8888 [55]3 years ago
7 0

Answer:

the sun

Explanation:

All the energy in oil, gas, and coal originally came from the sun, captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the energy that ancient plants captured from the sun.

hope this helps

taurus [48]3 years ago
3 0
The sun. The sun is a constant form of energy giving us light and heat
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According to the chart, which substance has the lowest OH- concentration?
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The correct answer is option (B) lemon juice.

pH refers to the logarithmic scale used to indicate the acidity or basicity of an aqueous solution. It is the negative of the base 10 logarithm of the activity of the hydrogen ion. Solutions with a pH less that 7 are considered acidic and the solutions with a pH greater that 7 are considered to be basic. A pH of 7 is neither an acid nor a base and is considered neutral.

An acid has a high concentration of hydrogen ions (H+)  and a base has a low concentration of hydrogen ions. Higher the hydrogen ion concentration, pH is acidic. Among the given substances, lemon juice has a pH of 2, urine has a pH of 6, tomato juice has a pH of 4 and black coffee has a pH of 5.  Since lemon juice has a pH of 2, it has the lowest –OH ion concentration.

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Answer:

amount of land required to provide all the resources used by that individual.

Explanation:

Here is the complete question:.

An individual's ecological footprint is equivalent to the:

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E. All of these choices are correct.

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amount of land required to provide all the resources used by that individual.

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Outline the pathway of a breath of air from the nose to the alveoli.
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