Class 6 Oceans and Continents Questions and Answers
Fill in the Blanks
1. The
Earth is often called the __________ planet because most of its surface is
covered with water.
Answer: Blue
2. A
large continuous expanse of land is called a __________.
Answer: Continent
3. The
__________ Ocean is the largest ocean in the world.
Answer: Pacific
4. Freshwater
found beneath the Earth's surface is called __________.
Answer: Groundwater
5. The
__________ Ocean is the smallest ocean in the world.
Answer: Arctic
6. The
Arabian Sea lies to the __________ of India.
Answer: West
7. A
huge destructive wave caused by an underwater earthquake is called a
__________.
Answer: Tsunami
8. __________
is the largest island in the world.
Answer: Greenland
9. Oceans
produce more than half of the world's __________.
Answer: Oxygen
10. The Bay of
Bengal lies to the __________ of India.
Answer: East
True or False
1. Oceans
cover nearly three-fourths of the Earth's surface.
Answer: True
2. Seawater
is suitable for drinking by humans without treatment.
Answer: False
3. The
Indian Ocean is the largest ocean on Earth.
Answer: False
4. Oceans
are completely separated from one another.
Answer: False
5. Monsoon
rains in India originate from the oceans.
Answer: True
6. Antarctica
is known for its hot climate.
Answer: False
7. India
has more than 1,300 small islands.
Answer: True
8. Overfishing
can harm marine life.
Answer: True
9. The
Northern Hemisphere contains more land than the Southern Hemisphere.
Answer: True
10. June 8 is
celebrated as World Oceans Day.
Answer: True
Short-Answer Questions
1. What is an ocean?
Answer:
An ocean is a vast body of salt water covering a large part of the Earth's surface.
Oceans contain most of the planet's water and support diverse marine life. They
also influence weather and climate around the world.
2. What is a continent?
Answer:
A continent is a large continuous landmass on Earth. Continents are separated
by oceans and seas. The most commonly accepted model recognizes seven
continents.
3. Why is the Earth called the Blue Planet?
Answer:
The Earth is called the Blue Planet because nearly three-fourths of its surface
is covered by water. When viewed from space, the oceans make the planet appear
blue. This unique appearance inspired the name.
4. Name the five oceans of the world.
Answer:
The five oceans are the Pacific Ocean, Atlantic Ocean, Indian Ocean, Arctic
Ocean, and Southern Ocean. These oceans are interconnected and together form
one vast global ocean system.
5. How do oceans help in maintaining life on Earth?
Answer:
Oceans provide rainfall through the water cycle and produce more than half of
the Earth's oxygen. They regulate climate and support countless marine
organisms. Human life depends heavily on healthy oceans.
6. What is a tsunami?
Answer:
A tsunami is a series of large ocean waves usually caused by underwater
earthquakes or volcanic eruptions. These waves can travel long distances and
cause severe destruction in coastal areas.
7. What are islands?
Answer:
Islands are pieces of land completely surrounded by water. They are smaller
than continents and vary greatly in size. Greenland is the largest island in
the world.
8. What is the importance of the Indian Ocean for India?
Answer:
The Indian Ocean influences India's climate and monsoon rainfall. It supports
trade, fishing, and transportation. The Arabian Sea and Bay of Bengal are
important parts of the Indian Ocean around India.
9. How are oceans being polluted?
Answer:
Human activities release plastic waste, chemicals, and other pollutants into
the oceans. These pollutants harm marine plants and animals. Pollution also affects
the health of the entire marine ecosystem.
10. Why should we protect oceans?
Answer:
Oceans provide oxygen, food, and climate regulation essential for life.
Pollution and overfishing threaten marine ecosystems. Protecting oceans ensures
a healthy future for both humanity and the environment.
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