The last option is correct. The passage uses a specific example, but the main idea of the passage is that the systems in our body are connected, so laughter (because it’s a sign of happiness) can relieve stress and boost our immune system.
A. Majority Rule
<span>
This differs from the majority of modern Western-style democracies, which are </span><span>representative democracies.</span>
<h2>
Answer: a. rock and metals; volatiles</h2>
The Terrestrial Planets are those that are closest to the Sun: Mercury, Venus, Earth and Mars. Among its main characteristics is the fact that they have a <u>metallic core</u> and a <u>silicate mantle </u>that surrounds them. In addition, they have rocks, craters, mountains, valleys and volcanoes on its surface.
on the other hand, Jovian Planets (Jupiter, Saturn, Uranus and Neptune) are classified as <u><em>"gas and ice giants"</em></u>, because they are mainly composed of gas and volatile materials. For example, <u>Uranus and Neptune have higher concentrations of methane </u>(hence its bluish color) and some heavier elements such as <u>oxygen, carbon, nitrogen, and sulfur</u>, while, Jupiter and Saturn have a mixture of <u>hydrogen</u> that gives off a red aspect.
Therefore:
<h2>Terrestrial planets are mainly composed of <u>
rock and metals</u> while Jovian planets are made dominantly of <u>
volatiles</u><u>.</u></h2>
