The video covers ecosystems, highlighting their biotic and abiotic components and the importance of niches. It discusses soil conservation, emphasizing methods to prevent erosion. The video explains natural resources, distinguishing between renewable and non-renewable types. It explores energy sources, focusing on renewable options like solar and wind energy. Finally, it details how wind turbines convert wind into electricity.

What is an ecosystem composed of?

• Only non-living components

• Only living organisms

• Non-living components and sunlight

• Living organisms and their habitat

Why is it important for organisms to have different niches?

• To reduce pollution

• To increase food supply

• To avoid competition and extinction

• To enhance biodiversity

What is the primary goal of soil conservation?

• To increase soil acidity

• To reduce soil nutrients

• To prevent soil erosion

• To increase soil temperature

Which of the following is a method to prevent soil erosion?

• Overgrazing

• Deforestation

• Afforestation

• Mining

What are renewable resources?

• Resources that can be used only once

• Resources that are always chemically polluted

• Resources that are unlimited and reusable

• Resources that are man-made

Why is sustainable development important?

• To reduce the human population

• To ensure resources for future generations

• To increase the use of fossil fuels

• To promote industrial growth

Which of the following is a renewable source of energy?

• Solar Energy

• Natural Gas

• Coal

• Nuclear Energy

What is the law of conservation of energy?

• Energy is only found in living organisms

• Energy is always wasted

• Energy can only be transformed

• Energy can be created and destroyed

How do wind turbines generate electricity?

• By using solar panels

• By converting kinetic energy from wind

• By using geothermal heat

• By burning fossil fuels

Who built the first wind turbine to generate electricity?

• Thomas Edison

• James Blitz

• Albert Einstein

• Nikola Tesla