Earth is the only planet in the solar system were living organisms are found. Not only that earth also consists of air,water,soil and land which are the most important elements for living organisms to survive. The temperature of earth is also favourable for living.As a whole living is possible in the earth so it is different from other planets in solar system.
Answer:
The correct answer is D.
Explanation:
A is very informal due to the use of slang such as ''ain't''.
B has an informal tone and language due to the usage of 'you guys' to address other people.
C is very informal due to the use of shortened street slang ''Y'all'' commonly used in informal set-ups for example among friends.
