7th Std Social Science Term 2 Solution | Lesson.4 Resources

7th Std Social Science Term 2 Solution | Lesson.4 Resources

I. Choose the correct answer

1. Which one of the following is renewable resource?

1. Gold
2. Iron
3. Petrol
4. solar energy

Ans : solar energy

2. Where is the largest solar power project situated in India?

1. Kamuthi
2. Aralvaimozhi
3. Muppandal
4. Neyveli

Ans : Kamuthi

3. Which is one of the first metals known and used by man?

1. Iron
2. Copper
3. Gold
4. Silver

Ans : Copper

4. __________ is one of the indispensable minerals used in electrical and electronics Industry.

1. Limestone
2. Mica
3. Manganese
4. Silver

Ans : Mica

5. Electricity produced from coal is called__________.

1. Thermal Power
2. Nuclear power
3. Solar power
4. Hydel power

Ans : Thermal Power

II. Fill in the Blanks.

1. ____________ is the largest producer of hydroelectricity.

Ans : China

2. Iron ores found at ________ in Tamil Nadu.

Ans : Kanjamalai

3. _______ is produced from bauxite ore

Ans : Aluminium

4. __________ is used in making electrical batteries.

Ans : Manganese

5. Petroleum and its derivatives are called _____

Ans : Black Gold

III. Match the following

1. Renewable Resource	Iron
2. Metallic resource	Mica
3. Non-metallic resource	Wind energy
4. Fossil Fuel	Sedimentary rock
5. Limestone	Petroleum
Ans : 1 – C, 2 – A, 3 – B, 4 – E, 5 – D

IV.Consider the following statements. Tick (√) the appropriate answer.

1. Assertion (A) : Wind power is Clean Energy

Reason (R) : Wind turbines do not produce any emissions

1. A and R are correct and R explains A
2. A and R are correct but R does not explain A
3. A is incorrect but R is correct
4. Both A and R are incorrect

Ans : A and R are correct and R explains A

2. Assertion (A) : Natural gas is found with petroleum deposits

Reason (R) : It can be used as a domestic and industrial fuel.

1. A and R are correct and R explains A
2. A and R are correct but R does not explain A
3. A is incorrect but R is correct
4. Both A and R are incorrect

Ans : A and R are correct and R explains A