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larisa [96]
2 years ago
5

Which of the following elements is not considered essential for living organisms?

Biology
1 answer:
Vinil7 [7]2 years ago
6 0

Answer:

Water

Explanation:

It is in liquid state

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Which equation satisfies the law of conservation of matter?
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Answer:

The correct answer is A. 3O₂ + 2Al → 2AlO₃

Law of conservation of mass states that mass can nether be created nor destroyed in a closed system or chemical reaction i.e. the total mass of the matter always remains the same throughout the chemical or physical change.

For example, in the given reaction 3O₂ + 2Al → 2AlO₃ the total mass of the reactants is equal to the total mass of the product.

Mass of oxygen = 16 x 3 = 48 AMU

Mass of aluminium = 2 x 27 = 54 AMU

Total molecular mass of the reactants = 102 AMU

Total molecular mass of the product = 2 x 27 + 6 x 8 = 102 AMU.

Hence, the total mass of the matter remains the same.


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3 years ago
Water clarity, or turbidity, measures the amount of sediment and debris in a body of water. Since light cannot shine into water
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plants growing on the lake floor

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2 years ago
A mountain lion population recently experienced a drop in population size. Which of the following would best describe the limiti
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A mountain lion population recently experienced a drop in population size. The best  limiting factor that is involved is- The deer population experienced a rapid decline due to a parasite.

Only this could be the best possible answer out of all other options because when there are no deer, there is no food for the lions.

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Do all the offspring survive? Why not?
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Some don't because of many things, disease and not getting enough food.

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Carbon can be stored in the ocean as
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The answer is Algae or in plants

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