1. the of the hubble space telescope is better for shorter (bluer) wavelengths of light than for longer (redder) wavelengths of light2. the large research observatories on mauna kea use giant separate the various colors of light, allowing astronomers to determine stellar composition and may other stellar properties.4. the twin 10-m keck telescopes can work together to obtain better angular resolution through a technique known as . the chandra x-ray observatory focuses x rays with mirrors.6. a 10-meter telescope has a larger than a 4-meter telescope.7. galileo's telescope designs using lenses were examples of

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank