What is the primary source of energy used in solar cells?

Solar cells primarily use sunlight to generate electricity through the photovoltaic effect.

True or False: Solar energy is considered a non-renewable energy source.

False. Solar energy is a renewable energy source.

Riddle: I am made of silicon and convert sunlight into power, found on rooftops and often in a solar park. What am I?

A solar cell.

Fill in the blank: India receives ample sunlight, with most regions experiencing around ___ clear sunny days annually.

300

What happens when sunlight falls on solar cells?

When sunlight falls on solar cells, it generates electricity through the photovoltaic effect.

Riddle: I capture the sun's heat to cook food without flames, using a box that retains warmth. What am I?

A solar cooker.

What are the benefits of using solar energy?

Solar energy offers many benefits.

• Reduces energy bills significantly.

• Conserves fossil fuel resources.

• Requires very little maintenance.

Wind energy is generated using ___ that harness the wind's force.

Windmills

Fill in the blank: Many housing societies have begun installing solar panels on rooftops to provide lighting for ___ areas.

Common

What is the largest wind farm cluster in India?

The largest wind farm cluster is situated from Nagarcoil to Madurai in Tamil Nadu.

Multiple Choice: Which state in India has significant wind energy production? A) Punjab B) Kerala C) Rajasthan D) Uttarakhand

Wind energy is considered a cleaner alternative to fossil fuels because it ___ .

Does not produce pollution.

Tidal energy is generated from the periodic rise and fall of ocean waters caused by the gravitational pull of the ___ and ___ .

Moon; sun

What are two advantages of using wind turbines on agricultural farms?

They reduce reliance on fossil fuels and provide additional income for landowners.

Fill in the blank: Tidal energy is harnessed through the construction of a ___ .

Tidal barrage.