Answer: celestial body A is most probably a star.
Step-by-step explanation:
The sun is mostly composed of the elements hydrogen (H) and helium (He). By mass the composition of the sun is about 75 percent hydrogen and 25 percent helium. The sun is a star in our solar system and stars like the sun need a lot hydrogen for generating their enermous energy from fission of hydrogen atoms into helium atom.
Answer:
ANSWER IN number8 IS C
ANSWER IN number9 IS B
Step-by-step explanation:
Answer:
90 : 1
Step-by-step explanation:
1 yard = 36 inches
5 yards = 36×5 = 180 inches
180 : 2
90 : 1
The answer is 12a3 + 2a + 23a + 18