1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vadim26 [7]
3 years ago
15

Suppose you go outside and look at three stars. Star A is blue, star B is white, and star C is red. Which star is the hottest an

d which is the coldest?
a. A is hottest and B is coldest b. C is hottest and A is coldest c. B is hottest and C is coldest d. A is hottest and C is coldest
Geography
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

d. A is hottest and C is coldest

Explanation:

The stars don't have the same coloration. This can even be noticed with naked eye, and much better when using a telescope. The coloration of the starts varies a lot, and the spectrum is very large.

In general though, the starts can be divided into four major groups in accordance to their color:

- blue

- white

- yellow

- red

The coloration of the starts can indicate two things, their age and their temperature.

The blue starts are the youngest ones and they also have the highest temperatures, around 20,000 C degrees.

The white starts are young stars, having temperatures of around 10,000 C degrees.

The yellow stars are middle aged stars, having temperatures of around 5,000 Celsius degrees.

The red stars are the oldest stars, having the lowest temperatures of around 2,000 Celsius degrees.

You might be interested in
The _______ refers to the region below the mixed layer where salinity changes as you
Eddi Din [679]

Answer: The halocline refers to the region below the mixed layer where the salinity changes as you move deeper underwater.

3 0
2 years ago
is considered the largest island in the world and is located northeast of North America. A. Iceland B. Greenland C. Padre Island
yulyashka [42]

Answer:

Greenland

Explanation:

*The island covers about 836,000 square miles (2.17 million square kilometers), or about three times the area of Texas. Only 158,000 square miles (410,000 square km) of that surface are ice-free.

* Greenland is more than 20 times bigger than Iceland

* Padre Island is only 203 square miles

* Baffin Island is 195,928 square miles

4 0
2 years ago
Read 2 more answers
Why does the ozone hole form in spring?
AlladinOne [14]

Answer:

c) No UV light until spring

Explanation:

According to research, chlorofluorocarbons also known as CFCs, are chemicals that are mainly responsible for the destruction of the ozone gas.

<em><u>This is all due to the interaction of different factors, and not only because of the presence of UV. </u></em>

In Antarctica, the ozone levels become significantly reduced during spring because of these chemicals that contain chlorine, producing a hole where cool air becomes trapped. This air produces clouds that are responsible of the release of chlorine from the CFCs, an extremely important process of the formation of an ozone hole. The more clouds there are, the more gases are released, and the worse the ozone hole will be in spring.

Because the sun rises and becomes more intense during spring, it degrades these gases and releases the free radicals of chlorine, which are highly detrimental for the ozone layer as they destroy numerous molecules of ozone. By the beginning of summer, there is a higher amount of ozone that comes from other areas which help fill the ozone hole.

6 0
3 years ago
What is the dominant climate factor for most of south asia?
Valentin [98]
Theres 3 types of climates there arid, semiarid and temperate 
7 0
3 years ago
The Global Positioning System (GPS) can help us to find exact locations using satellite signals. Which of geography’s three ques
krok68 [10]

Answer:

B, C, and D

Explanation:

As the question says, a GPS finds exact locations. Exact locations have nothin to do with when something happened.

3 0
2 years ago
Other questions:
  • What are some of the subfields of geography?
    8·1 answer
  • Do glaciers move materials long distance
    13·1 answer
  • The first amendment has often been interpreted as including A) the establishment of a bicameral legislature B) due process c) th
    10·2 answers
  • How do you explain the human environment interaction in Italy?
    9·1 answer
  • A very highly developed country has all of the following elements except __________. A. a high illiteracy rate B. good infrastru
    13·2 answers
  • What type of agricultural practices are used in syria and how does climate affect it?
    8·1 answer
  • which has a following would be considered a pull factor that would encourage a person to consider migrating to a new country
    5·1 answer
  • In 1–2 sentences, describe a feature that plan (a) shares with the urban planning commonly seen in colonies established by Franc
    6·1 answer
  • What is The meaning of Bandish????<br><br><br>If u have any idea about it do share ​
    10·2 answers
  • In the geologic past, volcanic eruptions have had an impact on the availability of resources. How can volcanic eruptions impact
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!