The Origin and Evolution of the Earth Test - 2

The most popular argument regarding the origin of the universe is the Big Bang Theory. It is also called expanding universe hypothesis. Edwin Hubble, in 1920, provided evidence that the universe is expanding.

The terrestrial planets were formed in the close vicinity of the parent star where it was too warm for gases to condense into solid particles. Jupiter-like planets are called jovian or giant planets.

The Sun is at an average distance of about 93,000,000 miles (150 million kilometers) away from Earth. It is so far away that light from the Sun, traveling at a speed of 186,000 miles (300,000 kilometers) per second, takes about 8 minutes to reach us.

Carbon provides the structural basis for organic compounds, hydrogen is involved in the formation of these compounds and is abundant in water, and nitrogen is essential for the formation of proteins and nucleic acids. These elements, along with other necessary conditions such as a suitable environment and energy sources, are believed to have played a crucial role in the emergence of life on Earth. 

The terrestrial planets/rocky planets are smaller and their lower gravity could not hold the escaping gases.

Out of the eight planets, Mercury, Venus, Earth, and Mars are called as the inner planets as they lie between the sun and the belt of asteroids the other four planets are called the outer planets.

In 1838, Sir George Darwin suggested that initially, the earth and the moon formed a single rapidly rotating body.

A galaxy contains a large number of stars. Galaxies spread over vast distances that are measured in thousands of light-years. The diameters of individual galaxies range from 80,000-150,000 light years. 

One of the earlier and popular arguments was by German philosopher Immanuel Kant. Mathematician Laplace revised it in 1796. It is known as the Nebular Hypothesis.

The terrestrial planets were formed in the close vicinity of the parent star where it was too warm for gases to condense to solid particles.