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katrin [286]
3 years ago
5

1. Which is a liquid fossil fuel? A petroleum B coal c peat D shale

Biology
2 answers:
bazaltina [42]3 years ago
5 0

The answer is A beacause the others are not liquid

Nastasia [14]3 years ago
3 0

Answer:

Explanation:

A.petroleum

is the answer

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What does the biodiversity on Earth indicate about its organisms?
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A high biodiversity tally may indicate that some of its organisms may be able to survive drastic environmental changes. If there weren't at least a few organisms that contribute to biodiversity, most of the biotic Earth would be gone by now.

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3 years ago
Which diagrams shows reaction pathway that absorbs energy?
postnew [5]

Question:

<em>The diagram shows the potential energy changes for a reaction pathway.</em>

Part 1: Does the diagram illustrate an endothermic or an exothermic reaction? Give reasons in support of your answer.

Part 2: Describe how you can determine the total change in enthalpy and activation energy from the diagram and if each is positive or negative.

Answer:

Part 1: The diagram illustrates an endothermic  reaction as the products has a higher potential energy than the reactants do. There is a positive slope of the diagram and there is enough energy to meet the activation energy requirement.

Part 2: You can determine the total change in enthalpy and activation energy from the diagram by the potential energy of the reactants. If the reactants have a high potential energy, then the enthalpy is also high, and if the reactants have a low potential energy, then the enthalpy is low. You can determine if the diagram is positive or negative by knowing if its an endothermic or exothermic reaction. An endothermic reaction is positive because the products are higher than the reactants and a exothermic reaction is negative because the reactants are higher than the products.

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3 years ago
Select the correct answer.
Lena [83]
The correct answer is D, white blood cells.
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I hope I helped!

(By nothing I meant very little to none).
7 0
3 years ago
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