Answer:
Explanation:
Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas.
Answer:
Food - Cow & Rabbit
Fiber - Alpaca & Camel
Work - Donkey & Horse
By-products- Cow & Sheep
Research - Monkeys & Rats
Entertainment - Dogs, Cats, Hamsters ect.
<h3>In general,the more massive a star is,the shorter it's life span on the main sequence.After the hydrogen fuel at the core has been consumed,the star evolves away from the main sequence on the HR diagram,into a supergiant,red giant,or directly to a white dwarf.</h3>
<h2>--SirGerick--</h2>
