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GarryVolchara [31]
3 years ago
5

Why would it be correct to say that heat rises? Explain....

Biology
1 answer:
satela [25.4K]3 years ago
6 0
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
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Which of the following explains why nonrenewable energy resources are still so widely used. Select multiple
egoroff_w [7]
Non renewable resources can be very expensive, especially in capital outlay. For example, wind energy is very expensive to get started. The batteries alone are a headache. What do you do with those batteries whose life is over? How do you dispose of them? It isn't an easy problem to solve.

Then there's the labor part of wind energy. If they are manufactured in Denver Co and they receive an order from Maine, the blades require a wooden plywood box to be made. Plywood is roughly 20$ a 1/2 sheet (in Canada) to say nothing of the carpenter needed to make the box. I'm told that it takes a good day and one half just to make that box alone. That's for 1 blade. Then there's the shipping cost for 3 blades. Then there's the cost of making the blades which require highly skilled workers. 

Then there's the problem of wind, (or lack thereof). the problems just keep on going up and the expenses with them. 
6 0
4 years ago
Is it possible to completely prevent a zeka infection
Minchanka [31]

The only way to completely prevent Zika infection during pregnancy is to not travel to areas with risk of Zika and to use precautions or avoid sex with someone who has recently traveled to a risk area.

5 0
3 years ago
If photosynthesizing green algae are provided with CO2 containing heavy oxygen (18O), later analysis will show that all of the f
motikmotik

Answer:

The correct answer will be option-D

Explanation:

The process of photosynthesis release oxygen from the plant which is used by the organism on earth during cellular respiration.

The oxygen released by the plants is formed through the splitting of water molecules as a result of the transfer of electrons through the electron transport chain in the thylakoid membrane during the light-dependent reaction.

Since the released oxygen is the result of the light-dependent reaction and not the light-independent reaction or Calvin cycle where heavy oxygen isotope is utilized in the cycle.

Thus, option-D is the correct answer.

8 0
3 years ago
What can we say about the frequency of x-linked recessive traits?
ohaa [14]
What we can say about the frequency of x-linked recessive traits is that the frequency of the allele for the recessive x-linked traits is assumed to be equal to the proportion of males with the recessive phenotype.
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Is it possible to have an inverted pyramid of energy?
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This isn't possible except you have a system where there isn't competition and the survival of the fittest in the aspect of the food chain
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4 years ago
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