Gravity , Explosion
<u>Explanation:</u>
Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger.
Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.
Answer:
Reservoirs
Explanation:
Glaciers serve as reservoirs in the water cycle since they can store water for long periods of time. A biogeochemical or nutrient cycle is composed of
- reservoirs, in which the biogeochemical or nutrient is stored, and
- the several processes by which the biogeochemical or nutrient is cycled between its reservoirs.
Answer:
Both mitosis and meiosis are multistage processes. The stages are interphase, prophase, metaphase, anaphase and telophase. The same general processes occur in each of these stages for mitosis and meiosis. Interphase is cell growth and DNA replication in preparation for cell division.
Explanation: