SOLAR SYSTEM

UNIVERSE

SOLAR SYSTEM FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The density of gas in a collapsing interstellar cloud is low at first, but ____ draws matter together until it is concentrated enough to form a star and possibly planets.
A
space
B
mass
C
gravity
D
dust
Explanation: 

Detailed explanation-1: -A nebula is a giant cloud of dust and gas in space. Some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova.

Detailed explanation-2: -The densest interstellar clouds are the molecular clouds. Molecular clouds are very dense by ISM standards, and very cold: only about 10ยบ above absolute zero. The most common component of these clouds is molecular hydrogen (H2).

Detailed explanation-3: -According to the nebular theory, stars form in massive and dense clouds of molecular hydrogen-giant molecular clouds (GMC). These clouds are gravitationally unstable, and matter coalesces within them to smaller denser clumps, which then rotate, collapse, and form stars.

Detailed explanation-4: -Which of the following did not occur during the collapse of the solar nebula? hydrogen and helium. According to our theory of solar system formation, what are asteroids and comets? Which lists the major steps of solar system formation in the correct order?

There is 1 question to complete.