Theory of spontaneous generation
Explanation: Theory of spontaneous generation stated, life arose from non-living things. Pasteur disprove this theory by S-shaped tube experiment. He used swan-neck flasks (twisted necks) and filled them with sterilized beef broth
<h3><u>Answer;</u></h3>
a nebular cloud of dust and gas
All of the celestial bodies of the solar system were said to have formed <u>from a nebular cloud of dust and gas.</u>
<h3><u>Explanation</u>;</h3>
- The solar system is composed of the sun and all the planets and other bodies that travel around it. A planet is a celestial body that orbits the sun.
- <em><u>According to solar nebula theory, a solar nebula is where the sun and planets were formed from. Solar nebula is a rotating cloud of gas and dust.</u></em>
- The sun is composed of about 99 percent of all the matter that was contained in the solar nebula. During formation of the solar system, the sun was forming in the center of the solar nebula, while planets were forming in the outer regions.
Explanation:
Ecologically, mosses break down exposed substrata, releasing nutrients for the use of more complex plants that succeed them. They also aid in soil erosion control by providing surface cover and absorbing water, and they are important in the nutrient and water economy of some vegetation types.
That depends on what you mean by ripples at the beginning of time. If you are referring to inflation of the universe caused by the Big Bang, and the subsequent "ripples", then those ripples are the leftover, background radiation from the event. If you are referring to ripples in space-time, then it still could have multiple meanings.