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lord [1]
2 years ago
5

Which is an accurate description of what occurs when a log burns?

Biology
2 answers:
Nana76 [90]2 years ago
8 0
It's d
It can't be A because energy can't be created or destroyed.
It cant be C because energy doesn't take enough of a role in the light of the fire.
It can't be B because the compounds are not changing.
Alika [10]2 years ago
4 0

Answer:

d. The molecules present in the log are transformed into molecules that contain less energy than the original molecules. The energy difference is the heat of the fire

Explanation:

When a log of wood burns, Oxygen must be present because it is a combustion reaction. A log of wood is composed of organic materials and the main organic material present is Carbon.

Due to the fact that Oxygen is present, Carbon reacts with Oxygen to form Carbon dioxide which contains lesser energy than Carbon.

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She should investigate how temperature affects the rate of oxygen production.

<h3>Photosynthesis</h3>

During photosynthesis, green plants make use of inorganic products in the form of water and carbon dioxide to synthesize carbohydrates. The reaction only happens in the presence of solar radiation and oxygen is evolved as a by-product.

The process involves a series of chemical reactions. However, the summary of the whole reactions is represented by the following equation:

carbon dioxide + water ----> glucose + oxygen

Thus, if Emily is to find out how temperature affects photosynthesis. She will need to use a plant as a case study. One factor that can easily be used to measure the rate of photosynthesis is oxygen production by plants.

In other words, Emily will have to set up an experiment where a plant species will be subjected to the same environmental conditions, except temperature. Then, a suitable method will be used to measure the amount of oxygen produced. Any difference in the volume of oxygen produced can then be attributed to the effects of temperature.

More on photosynthesis can be found here: brainly.com/question/1388366

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