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Artemon [7]
2 years ago
15

What is the apparent brightness of a star?

Biology
2 answers:
DedPeter [7]2 years ago
6 0

Answer: Hello, I think it is C

Explanation: I think its C because is the best possible cause it could be brighter in another planet closer to it

Stolb23 [73]2 years ago
5 0

The apparent brightness of a star is how much energy is coming from the star per square meter per second, as measured on Earth.

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How can microalgae be used to create biodiesel
mestny [16]

The oil extracted through these methods is referred to as "green crude" and it's not ready to be used as fuel until it undergoes another process called transesterification. This step adds more substances to the mix, including alcohol and a chemical catalyst that causes the alcohol to react with the oil. This reaction creates a mix of biodiesel and glycerol. The final step in processing separates the glycerol from the mixture and leaves a biodiesel that's ready to be used as fuel. Maybe one day it really will be easy being green.


You can read more about it here https://auto.howstuffworks.com/fuel-efficiency/biofuels/convert-algae-to-biofuel.htm

8 0
3 years ago
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
PLZZ HELP!
andrew-mc [135]

Answer:

nucleus is the answer your welcome

7 0
2 years ago
Read 2 more answers
Nucleic acids and carbohydrates are both types of what?
Maslowich
The answer is A. macromolecules

There are 4 types of macromolecules; lipids, proteins, carbs and nucleic acids
3 0
3 years ago
Please Help Asap!!!!
nasty-shy [4]
The organism that gets it's energy directly from the sun is PHYTOPLANKTON.
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3 years ago
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