Answer:
the Chechens are a stateless nation
I need help with this question
Answer:
A trench is your answer, hope this helps!
A deer lives in a large forest. Which of the following are abiotic factors that the deer would rely on for its growth and survival?
Choose all that apply:
Grass as a food source.
Wolves as predators.
Air to breathe.
Water to drink.
Other deer as potential mates.
A comfortable temperature range.
Answer:
A, grass as a food source, and D, water to drink
Which battle marked the end of the revolutionary war?
Rocks in ocean crust are as old as
years.
A. 44 million
B. 200 million
C. 4.4 billion
The people of blank are a mix of Spanish and Indian.
Answer:
In the United States, Canada and other English-speaking countries and cultures, mestizo, as a loanword from Spanish, is used to mean a person of mixed European and American Indian descent exclusively. It is generally associated with persons connected to a Latin American culture or of Latin American descent.
Explanation:
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Select the reasons why most professional telescopes are reflectors rather than refractors.
a) A lens has to be supported only around its edges.
b) Only the front surface of a mirror has to have a precise shape.
c) Reflecting telescopes have shorter focal lengths than refracting telescopes.
d) It is easier to make a large reflecting telescope than a large refracting telescope.
e) Lenses are not subject to chromatic aberration.
f) A reflector can collect more light than a refractor.
Answer:
d). It is easier to make a large reflecting telescope than a large refracting telescope.
f). A reflector can collect more light than a refractor.
Explanation:
A telescope is a device that is used to observe distant objects by the use of lenses and mirrors. It is also used to observe different distant objects by their reflection, absorption, emission or the reflection of the electromagnetic radiations.
Most of the professional telescopes are reflectors because :
1. The reflected telescope is able to receive more of the light when it reflects all the light falling on surface. And it is easier for making a large telescope rather then making large lenses for the refracting telescope. So it is easier to make large reflecting telescope than a large refracting telescope.
2. A reflected telescope receives all the wavelength of the light and it reflects all the light falling on the surfaces where it is refracted telescope that contains lenses cannot absorbs all the light and causes the chromatic aberration.
It is simpler to make a large reflecting telescope than have a large refracting telescope. A reflector can collect more light than a refractor. Hence the options D and F are correct.
What are professional telescopes ?A telescope is an optical instrument that is used for seeing far objects from a distance and includes the measures for the various distances that can be used to see through the device. The light that is emitted, absorbed, and reflected can be seen through the electromagnetic radiation can be observed through the refracting lens of the telescope.
Find out more information about the telescopes.
brainly.com/question/1331936.
Can you help Please?
Blank 1: mid-oceanic ridge
Blank 2: sea-floor spreading
Blank 3: heat
Blank 4: lava
Hope this helps!!