Hellish- our planet was literally a giant ball of hot rock for a while. asteroids and comets, and small planets (moon) pounded the surface and made it inhospitable. (Plus our planet was just trying to figure out how to do planet stuff)
Answer:
O A Single-celled organisms are simple, while multicellular organisms are complex,
C, Both types of organisms contain exactly the same four nitrogen bases, but in different sequences and numbers.
Answer:
the kind of material it is moving through
Explanation:
Sound wave is a type of mechanical wave, which requires a medium to travel, unlike longitudinal waves that can travel through vacuums. Since, sound waves travel through mediums, the KIND OF MEDIUM/MATERIAL it is traveling through has a role to play on how fast it moves.
Sound waves move faster in materials whose molecules are closely packed together than those with loosely packed molecules. This is why sound waves naturally travel faster in SOLID materials. Therefore, the the kind of material the sound wave is moving through affects how fast it moves.
The answer would be B. Abiotic Factors. The prefix a means not, so a biotic means not alive. Hope that helped :D
