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Ierofanga [76]
4 years ago
6

Besides parallax, how else can we determine the distances to stars

Biology
2 answers:
cupoosta [38]4 years ago
6 0

Answer:

There is no direct method currently available to measure the distance to stars farther than 400 light years from Earth, so astronomers instead use brightness measurements. It turns out that a star's color spectrum is a good indication of its actual brightness.

Explanation:

Soloha48 [4]4 years ago
6 0
The use of cepheid variables is your answer
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Why does the Department of Homeland Security target foot-and-mouth disease?
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The bottom- and- mouth complaint contagion has been honored since at least the 16th century.

  • It's characterized by fever, pocks on the bases and mouth, loss of appetite, drooling and lameness. Infected herds of creatures are generally destroyed.

  • Large quantities of the contagion are present in all body concealment, including breath, and are readily transmitted to other creatures. The contagion can also survive on the ground for extended ages of time and can be transferred on tires, thrills and clothes. It has indeed been shown to be carried long distances by wind.

  • The United States has been free of the complaint since 1929, but that isn't a guarantee it'll not return. Britain was free of the complaint for 34 times before a 2001 outbreak that needed the destruction of 10 million cows.

  • FMD contagion is largely contagious in cloven- mashed creatures, including cattle, gormandizers, small ruminants. Encyclopedically, FMD has a significant impact on beast trade economics and expansive nonsupervisory programs live in the U.S. to grease identification of, response to, and control of the complaint. With one in nine Americans employed in the husbandry or confederated diligence, the goods of an FMD outbreak in the U.S. would be ruinous ­ – estimated at nearly$ 200 billion in lost profit over 10 times across affected diligence.

Therefore the Department of Homeland Security target foot-and-mouth disease.

learn more about food-and-mouth disease here:

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2 years ago
Explain how geographical isolation causes speciation.
DanielleElmas [232]

Answer:Because of where they are from.

Explanation:

Geographic, or physical, barriers result in geographic isolation

3 0
4 years ago
The cell makes copies of DNA molecules through a process known as _________________________.
vladimir1956 [14]
DNA replication........
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3 years ago
Choose one nonrenewable energy source and one renewable energy source. Describe how the use of each source affects the environme
cluponka [151]
A tree is renewable because it can re grow and make more trees.
Iron is non renewable because it can’t make any more things, you can just use it that one time
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WILL MARK BRAINLIST!!! only for correct answer<br> NEED CORRECT ANSWER ASAPPP
polet [3.4K]

Answer:

D. 4

Explanation:

Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.

Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface.

From the diagram provided above, the thin beam of light which illustrates reflection is the fourth because as it hit the surface, it bounced back to the medium from which it was originally propagated with.

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