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3 years ago

15

How are fossil fuels used in the harvesting of fresh apples from an apple tree?

2 answers:

zzz [600]3 years ago

7 0

Answer: The correct answer is : D. Fossil fuels power the machine that shakes the tree so that the apples to the ground.

Explanation: The use of fossil fuels has been incorporated into food production since 1950 in the form of kinetic energy, pesticides, and other products used in production. Fossil fuels are non-renewable materials such as petroleum (oil and gas) and coal.

il63 [147K]3 years ago

5 0

D is the answer hope i can help u

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3 years ago

A solution of acetic acid has a pH of 3.45. What is the concentration of acetic acid in this solution? Ka for CH3COOH is 1.8×10-

Serjik [45]

Answer:

0.007 M

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pH is defined as the negative logarithm of the concentration of hydrogen ions.

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The expression of the pH of the calculation of weak acid is:-

$pH=-log(\sqrt{k_a\times C})$

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