What makes planet Earth different from the other planets in the solar system?

Which is not true in a comparison between Mars and Earth?

Traps heat, shield the surface from harmful radiation, and provide chemicals needed for life, such as nitrogen and carbon dioxide. Which factor is being described here that is present to planet Earth?

It was found out that Earth’s surface is covered with water. Approximately, how many percent of water comprises the Earth?

What is the reason why every living thing on Earth has the chance of survival?

Earth can support the survival of organisms. What is/are the factor/s that make/s Earth habitable?

I.  atmosphere                   III. Temperature

II.  energy                             IV. Nutrient

Planet Earth is considered as “blue planet”. Which of the following best describes the surface of planet Earth?

A thin layer of solid rock that makes up the outermost part of the Earth is visible to which part of geosphere?

Relationship between the complex communities of individual organisms is seen in the different systems of the Earth. What do you call the unit in nature?

When nitrogen is returned to the soil when dead plants decompose is an interaction that occurs in what system?