Class 2 > Social Science for Class 2 > Worksheet: Our Earth - 1
Worksheet: Our Earth - 1 - Social Science for Class 2
Q1: Fill in the Blanks.
(i) An ______ is a piece of land surrounded by water on all sides.
(ii) ______ is the purest source of water.
(iii) Flat lands are called ______.
Q2: Multiple Choice Questions (MCQs).
(i) The lowlands between the hills or mountains is known as
(a) hill
(b) mountain
(c) valley
(d) plain
(ii) A large area of dry land covered with sand is called a
(a) pond
(b) river
(c) desert
(d) mountain
Q3: Match the Following.
Q4: Oral Questions.
(i) Name the various landforms present on the earth.
(ii) How is our earth unique?
Q5: True and False.
(i) High hills are called plains.
(ii) The flat top of a plateau is called a tableland.
(iii) Small water-body is called pond.
Q6: Answer the Following Questions.
(i) What is the difference between an island and a hill?
(ii) Where do we live?
(iii) Name the various water-bodies present on the earth.
(iv) Why do deserts have few plants?
The document Worksheet: Our Earth - 1 | Social Science for Class 2 is a part of the Class 2 Course Social Science for Class 2.
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FAQs on Worksheet: Our Earth - 1 - Social Science for Class 2
| 1. What is the significance of Earth's atmosphere? |  |
Ans. The Earth's atmosphere plays a crucial role in supporting life on our planet. It provides us with the air we breathe, protects us from harmful solar radiation, regulates the temperature, and maintains the necessary pressure for life to exist.
| 2. How does the Earth's rotation affect day and night? | |
Ans. The Earth's rotation causes the phenomenon of day and night. As the Earth rotates on its axis, different parts of the planet are exposed to the Sun's rays. The side facing the Sun experiences daylight, while the opposite side experiences darkness, resulting in the occurrence of day and night.
| 3. What are the major components of the Earth's hydrosphere? | |
Ans. The Earth's hydrosphere consists of all the water present on our planet, including oceans, seas, lakes, rivers, groundwater, and even water vapor in the atmosphere. It is a vital component for supporting various ecosystems, regulating the climate, and providing a habitat for numerous species.
| 4. How do tectonic plates contribute to the formation of mountains? | |
Ans. Tectonic plates are large pieces of the Earth's lithosphere that float on the semi-fluid asthenosphere beneath them. When these plates interact, they can collide, causing the crust to buckle and fold, leading to the formation of mountains. This process is known as orogeny.
| 5. What are the main factors contributing to climate change? | |
Ans. Climate change is primarily caused by human activities that release greenhouse gases into the atmosphere, such as burning fossil fuels, deforestation, and industrial processes. These greenhouse gases trap heat, leading to an increase in global temperatures and subsequent changes in weather patterns. Natural factors like volcanic eruptions and variations in solar radiation can also influence climate change.
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