Type the correct answer in the box. Select the correct answer.
Celestial object A is composed of 92.1 percent hydrogen and 7.8 percent helium while celestial object B is made up of ice, frozen carbon dioxide, rock, and dust. What is celestial object A?
A.
asteroid
B.
comet
C.
dwarf planet
D.
black hole
E.
star

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

"do a testcross with a homozygous recessive plant."