SOLAR SYSTEM

Detailed explanation-1: -The Earth’s crust is its lightest, most buoyant rock layer. Continental crust covers 41percent of the Earth’s surface, though a quarter of that area is under the oceans.

Detailed explanation-2: -“Crust” describes the outermost shell of a terrestrial planet. Our planet’s thin, 40-kilometer (25-mile) deep crust-just 1% of Earth’s mass-contains all known life in the universe. Earth has three layers: the crust, the mantle, and the core. The crust is made of solid rocks and minerals.

Detailed explanation-3: -Oceanic crust is primarily composed of dark basalt rocks rich in elements such as silicon and magnesium whereas continental crust is made of light-colored granite rocks containing oxygen and silicon.

Detailed explanation-4: -Hydrogen is the simplest and lightest element and the most common in the entire universe. The atomic number and mass number both are unity for hydrogen.

Detailed explanation-5: -Earth’s crust. On the outer shell, Earth’s crust is thin and rigid. Earth’s mantle. As we move down through the crust into the mantle, we get into denser and heavier rocks. Earth’s iron core. 12-May-2022