Which is the largest water body on Earth?
A) River
B) Sea
C) Lake
D) Ocean
Answer: D) Ocean
What is a land-bound water body surrounded on all sides called?
A) Ocean
B) River
C) Pond
D) Lake
Answer: C) Pond
Why is Earth called the “blue planet”?
A) Blue mountains
B) Blue flowers
C) Blue soil
D) Water covering its surface
Answer: D) Water covering its surface
What human activity has made the Earth dirty?
A) Planting trees
B) Building bridges
C) Putting harmful substances in air, water, and land
D) Constructing dams
Answer: C) Putting harmful substances in air, water, and land
Which is the highest mountain on Earth?
A) Mount Kilimanjaro
B) Mount Everest
C) Mount McKinley
D) Mount Fuji
Answer: B) Mount Everest
What is essential for life on Earth?
A) Deserts
B) Air and water
C) Mountains
D) Plateaus
Answer: B) Air and water
What term is used for a chain of mountains?
A) Summit
B) Range
C) Plateau
D) Peak
Answer: B) Range
