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beks73 [17]
3 years ago
7

Sound waves cannot travel in a cacuum because?

Biology
1 answer:
inysia [295]3 years ago
8 0
Sound cannot travel through a vacuum. A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.
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This photo shows a plateau. Which events could have caused this plateau to form? Select the three correct answers.
Mrac [35]

Answer:

The correct options are A,C and E.

Explanation:

In geology, plateaus can be described as uplifted areas that are generally flat from the upper surface. The formation of plateaus takes millions of years. They are also called as tablelands due to their structure.

A plateau might form when the magma inside the Earth cooled and is raised above the surface of the Earth's crust. It can also be caused due to an erosion of a mountain generating lava.

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4 years ago
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In general, what is not affected by the ingestion of caffeine?
Phoenix [80]
The correct answer is "behavioral consequences of alcohol intoxication".

Caffeine is a component mainly from coffee and other beverages such as soft drinks and energy drinks. It acts as a stimulant by binding to the adenosine receptors in the brain; blocking the actions of adenosine in the CNS (adenosine works to signal tiredness). In turn, there will be increased alertness. This does not affect the behavioral consequences of alcohol intoxication as these two works in different pathways.

On the other hand, caffeine ingestion affect the risk of cardiovascular disease as it increases heart rate and myocardial workload; it increases the time to fall asleep; and increases the performance in doing boring repetitive tasks.
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3 years ago
In what part of cell does replication occur
tatiyna

Answer:

in the nucleus of the cell

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4 years ago
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BRAINLIEST ASAP!<br> How do atoms react with other atoms to create compounds?
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They bond together creating compounds
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A scientific theory can always be disproved if someone comes along with better evidence which shows another theory is true. However, most other theories are small improvements on existing ones. Evolution and natural selection (the theory that animals' populations change over time because their environment encourages specific different features for individuals that happen with mutation) was an improvement on the existing "theory" that animals were built to be fit for their environments. The earth rotating around the sun was a theory improving on the idea that the sun and the earth move around so that it looks like the sun moves around the earth. All of these happened because there was evidence, so while theories aren't always absolutely true, many modern theories are typically well-tested and if they aren't, they are usually refered to as hypotheses or models (although models can sometimes also be theories, like the Standard Model)

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