Test: Energy - 1 - JAMB MCQ

Global warming is a major environmental impact of energy use. It is caused by the release of greenhouse gases, such as carbon dioxide, from burning fossil fuels.

The greenhouse effect is primarily caused by burning fossil fuels, which release greenhouse gases that trap heat in the Earth's atmosphere, leading to global warming.

Solar power is considered environmentally friendly because it harnesses energy from the sun without producing greenhouse gas emissions or pollution.

Energy crises occur due to insufficient energy sources, which can lead to blackouts, energy rationing, and economic instability.

A fan rotating to create air movement is an example of energy conversion. Electrical energy is converted into mechanical energy to produce the fan's movement.

A hydroelectric power plant converts the potential energy of water at a high elevation into mechanical energy, which is used to generate electricity.

Biomass is a renewable source of energy derived from organic materials, such as plants and agricultural waste. It can be used to produce heat, electricity, and biofuels.

In photosynthesis, solar energy is converted into chemical energy stored in the bonds of glucose and other organic molecules.

Energy-efficient appliances reduce energy consumption by using less electricity or fuel to perform the same tasks, leading to lower energy bills and reduced environmental impact.

Chlorofluorocarbons (CFCs) are synthetic compounds that were commonly used in refrigerants and aerosol propellants, contributing to the depletion of the ozone layer.