Answer:
The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.
Explanation:
There's many organelles that exist, but the (main) organelles that help and produce many things would be cell wall, a large central vacuole, and plastids which originate around chloroplasts.
Answer:
C
Explanation:
Ice-covered surfaces are highly reflective of the sun's rays therefore prevent those areas from warming as much as the areas where the ice is replaced with darker, less reflective surfaces which absorb heat and thus contribute more to global warming. Albedo is the percentage of radiation reflected by the earth's surface. Clear surfaces have greater albedo values than dark surfaces.
<span>Biome is the term for the physical amount of plant material at a location. But also it could be Biota. So It would better if you've attached any options to choose.</span>
