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Mandarinka [93]
3 years ago
5

What makes a theory change over a period of time

Biology
2 answers:
tatiyna3 years ago
5 0

A theory is simply something that is approved by a large amount of people with research. A theory theoretically can never become a law because in order to become a law, It would have to be proven without a doubt. Meaning that in order to change over time, the only thing that could possibly change is the amount of evidence and people that support it. For example, Thermodynamic Laws are proven and can be researched without a doubt. However, Darwin's Theory of Evolution will likely never be a law because it can not be hunkered down and completely proven.

mart [117]3 years ago
4 0

Une théorie change avec les avancées scientifiques, les avancements culturels et les changements de point de vue de la société.

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How did fossil<br> fuels form, and how<br> are they obtained<br> and used?
Usimov [2.4K]

Explanation:

Fossil fuels are important energy sources for our every day activities.

  Formation of fossil fuels

Fossil fuels forms from the accumulation and burial of organisms in a basin of deposition. Instead of the organisms decaying, they preserve their carbon content. To be worthy of becoming fossil fuels, organisms must be buried in an environment where there is little to no oxygen to fast-track decomposition of the buried organic matter. Increase in temperature and pressure causes the organic matter to transform into fossil fuels.

How are they obtained

First, different fossil fuels have their extraction techniques because they occur in different physical state of matter.

For the solids e.g coal: exploration is carried out first and if a prospect is delineated, mining engineers design the best way to extract the coal from nature. Coal is usually found laid in sedimentary beds in nature. Top layers of sediments can be removed to extract the coal.

For fluids such as crude oil and natural gas, after a prospect is identified, a rig is usually constructed to extract the fluid and gas. The natural pressure allows for the fluids the rise within the drill used in extraction.

How are they used

Coal and gas are used to power electrical generating plants. They are used to heat steams which drives turbines and produce electricity.

Natural gas is used as a domestic fuel for cooking and so also coal.

When crude is processed a lot of product is obtained. Gasoline is used to power most internal combustion engines. Some chemicals useful for manufacturing plastics, drugs e.t.c are also derived from the processed crude.

Learn more:

Harnessing fossil fuel brainly.com/question/9231468

#learnwithBrainly

8 0
3 years ago
Which of these tasks would a hydrologist be most likely to perform?
GuDViN [60]

Hydrologists are most likely to perform actions relating to estimating the amount of groundwater in an aquifer.

<h3>Hydrologists</h3>

Hydrologists are scientists that specialize in the study of how water relates to the various crusts of the earth.

Hydrology in itself refers to the branch of science that studies how water moves relative to the earth's crusts.

Thus, species identification, age of fossils, or extracting underground oils have nothing to do with the work of hydrologists.

More on hydrology can be found here: brainly.com/question/13554728

5 0
2 years ago
Why is the Calvin cycle considered a dark reaction?
kogti [31]
<span>Answer D hop you get it </span><span>Answer</span>
5 0
3 years ago
Read 2 more answers
Unit 4 Review
Rina8888 [55]

Answer:

 h

Explanation:

4 0
3 years ago
15 points Which is correct? Biology Asap
Ratling [72]

Answer:

Part A- Linear duplicated chromosomes

Part B-Anaphase

Explanation:

Sister chromatids are duplicated copies of a single chromosome that are attached to each other and are identical. They are attached at the centromere. The sister chromatids which are linear separate at the centromere and migrate to the opposite poles.

During anaphase, the sister chromatids of each chromosome separate at the centromere with each moving towards the opposite pole. The chromatids are pulled by the shortening of the spindle fibres. Mitochondria congregate around the spindle during this movement.

8 0
3 years ago
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