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butalik [34]
3 years ago
8

What is the main cause of an aurora

Biology
1 answer:
Phoenix [80]3 years ago
7 0

When charged particles from the sun strike atoms in Earth's atmosphere, they causeelectrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights

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Alex

Answer:

On slim shady's grave please stand up

Explanation:

7 0
2 years ago
Approximately+________%+of+the+stored+energy+of+an+organism+at+one+level+of+a+food+web+is+transferred+to+the+tissues+of+the+orga
Mademuasel [1]

Approximately  10% of the stored energy of  an organism at  one level of a food web is transferred to the tissue of the organism that consumes it at the next level of the food web.

<h3>What is food web and its importance ?</h3>

A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is a part multiple food chains. The importance of food webs is to describe feeding relationship among species in a community.

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3 0
2 years ago
The action that moves the scapula towards the head is called __________. the action that moves the scapula towards the head is c
ozzi
Elevation is the answer
6 0
3 years ago
Group the following into the appropriate range of measurement.
Vesna [10]

Answer:

Hydrogen atom & glucose molecule --- atomic.

Herpesvirus, DNA --- ultramicroscopic.

Protozoan, Rickettsia - microscopic.

Roundworm and algae --- macroscopic

Explanation:

1) Hydrogen atom & glucose molecule --- atomic.

The atomic size level, which interacts with atoms as well as small molecules, is much lower than the ultramicroscopic range.

2) Herpesvirus, DNA --- ultramicroscopic.

Ultramicroscopic particles are very tiny structures that cannot be seen using a conventional optical microscope, necessitating the use of an electron microscope. Viruses and DNA falls into this group since they are much smaller than tiny species like bacteria.

3) Protozoan, Rickettsia - microscopic.

Microscopic species are much smaller than macroscopic organisms because they cannot be observed by the naked human eye and must be viewed through a microscope. The size range for microscopic particles is ( 10^3  \ \ to  \ \ 10^{10}), which contains protozoans and Rickettsia (a gram-negative, non-motile bacteria genus).

4) Roundworm and algae --- macroscopic

Naked eyes can see macroscopic organisms; for example, several types of circular worms and algae can be seen by them.

7 0
2 years ago
What is constat mean?​
BARSIC [14]

Answer:

con·stant

/ˈkänstənt /

adjective

occurring continuously over a period of time.

"the pain is constant"

Similar:

continual

continuous

persistent

sustained

abiding

round-the-clock

ceaseless

unceasing

perpetual

incessant

never-ending

everlasting

eternal

endless

unending

unabating

nonstop

perennial

unbroken

uninterrupted

unrelieved

interminable

unremitting

relentless

unrelenting

without respite

sempiternal

steadfast

steady

resolute

determined

persevering

tenacious

dogged

unwavering

unflagging

unshaken

Opposite:

inconstant

fitful

noun

a situation or state of affairs that does not change.

"the condition of struggle remained a constant"

Similar:

unchanging factor

unchanging state of affairs

unchanging situation

Explanation:

5 0
3 years ago
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