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Alekssandra [29.7K]
3 years ago
13

Help me ill gib 88 plssssssssss ​

Biology
1 answer:
tigry1 [53]3 years ago
7 0
Oh ok look at comments make me brainliest first
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Natural erosion can be caused by _______.
olga_2 [115]

Answer:

Deforestation

Explanation:

Erosion may occur when deforestation is in place, it sweeps land into the rivers. If this isnt the answer then it might be all of the above

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3 years ago
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Can someone please help me
vredina [299]
2.1 a) nectar b) to produce seeds c) pollen is made in the ovary 
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What’s the correct answer to number 15 ? Explain why please !!
dsp73

Organelles must do their duties together and their activities must be coordinated I'm pretty sure.

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Name and describe each star phase.
Inessa [10]
(A nebula)
is a cloud of gas (hydrogen) and dust in space. Nebulae are the birthplace biths. There are different types of nebula. An Emission Nebubla such as Orion nebula, glows brightly because the gas in it is energised by the stars that have already formed within it. 

(A star)
is a luminous globe of gas producing its own heat and light by nuclear reactions (nuclear fusion). They are born from nebulae and consist mostly of hydrogen and helium gas. 

(red giant)
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(red dwarf)
These are very cool, faint and small stars, approximately one tenth the mass and diameter of the Sun. They burn very slowly and have estimated lifetimes of 100 billion years. 

(white dwarf)
This is very small, hot star, the last stage in the life cycle of a star like the Sun. White dwarfs have a mass similar to that of the Sun, but only 1% of the Sun's diameter; approximately the diameter of the Earth. 

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8 0
2 years ago
List two ways that a fuel cell differs from an ordinary battery
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The simple answer is that in a battery the chemical reactions that produce the electrical current are produced from materials that are already in the battery itself, whereas in a fuel cell, the reactants, almost always Hydrogen and Oxygen are fed to the cell like an external fuel.

. However, while a battery makes electricity from the energy it has stored inside the battery, a fuel cell makes its electricity from fuel in an external fuel tank This means that while a battery may run dead, a fuel cell will make electricity as long as fuel is supplied. For hydrogen fuel cells, hydrogen is the fuel and it's stored in a tank connected to the fuel cell. When hydrogen in the tank runs low, you refill it, or replace it with a full tank.  


6 0
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