The submarine sends out a sound wave that returns in 1.08 seconds. If this sound wave has a frequency of 2.50 × 106 Hz and a wavelength of 6.00 × 10-4 meters, how far away is the ship?

b

explanation:

bc its just b

chemical properties of thing

it would be kevlar ^^

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.