Answer:
According to the core accretion model, initially the dust particles and the interstellar gases were all combined together forming a huge cloud, that eventually gets cooled and these gases got concentrated and became gradually denser.
Due to the increasing density, this cloud got disintegrated under the action of gravity, thereby formed a proto-star. Due to the continuous fusion and gravity effects, a star formed and eventually got burst. It then formed the sun with a disk of substances and matter around it. This rotating disc in due course of time gave rise to the planets that exist today.
This is how the solar system originated according to the core accretion theory.
Hey kiddo.
It takes about 365 days, for Earth to orbit the Sun. At 67,000 miles an hour it does so. An elementary way of knowing this concept is knowing how many days are in a year. There are 365 days in a year, thus it takes 365 days for earth to travel around the sun. It may be 366 if you are including the leap year that comes to past in intervals of 4 years. The next leap year is in 2020.
<span>Morality can contribute to the creation of an ''us'' and ''them'' type of mentality - true
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<span>People have a natural tendency to benefit themselves when part of a group? - true </span>
