Which of the following statements is correct with reference to our so...
The Earth is the densest of all planets in the Solar System. The predominant element in the composition of the Earth is Iron (36 %) and in the Earth’s crust is oxygen (45 %). The Sun contains 99 % of the mass of the solar system. The diameter of the sun is 109 times that of the Earth.
Which of the following statements is correct with reference to our so...
B) The predominant element in the composition of the Earth is Silicon.
This statement is incorrect. The Earth is composed of several elements, with the most abundant elements being oxygen, silicon, aluminum, iron, calcium, sodium, and potassium. However, the predominant element in the Earth's composition is oxygen, not silicon.
c) The Sun contains 75 percent of the mass of the solar system.
This statement is also incorrect. The Sun contains about 99.86% of the total mass of the solar system. It is by far the most massive object in our solar system, with a mass approximately 330,000 times that of Earth. The rest of the mass is distributed among the planets, moons, asteroids, comets, and other celestial bodies.
d) The diameter of the Sun is 190 times that of the Earth.
This statement is incorrect as well. The diameter of the Sun is approximately 109 times that of the Earth, not 190 times. The Sun has a diameter of about 1.4 million kilometers, while the diameter of the Earth is about 12,742 kilometers.
a) The Earth is the densest of all the planets in our solar system.
This statement is correct. Density is defined as mass per unit volume. The Earth has the highest average density among all the planets in our solar system. Its average density is about 5.52 grams per cubic centimeter. This high density is due to the presence of heavy elements, such as iron and nickel, in its core. The other planets in our solar system have lower average densities compared to Earth. For example, Jupiter, the largest planet, has an average density of only about 1.33 grams per cubic centimeter.
In conclusion, the correct statement is that the Earth is the densest of all the planets in our solar system. The other statements provided are incorrect.