6th Grade: A Trivia Quiz On Earth Science!

Explanation
Uranium is not a biomass fuel because it is a radioactive element and not derived from living organisms. Biomass fuels are organic materials, such as cow dung, firewood, and peat, that are derived from plants or animals. Uranium, on the other hand, is a non-renewable resource and is primarily used as a fuel in nuclear power plants to produce electricity.

Explanation
Geothermal power uses heat from below the ground. This form of power harnesses the natural heat energy stored in the Earth's crust, typically in the form of hot water or steam, to generate electricity. It involves drilling deep into the ground to access the geothermal reservoirs and then utilizing the heat to drive turbines and produce electricity. Geothermal power is a renewable and sustainable energy source that has the advantage of being available 24/7, providing a consistent and reliable power supply.

Explanation
Trees give out oxygen through the process of photosynthesis. During photosynthesis, trees and other plants use sunlight, carbon dioxide, and water to produce glucose (a type of sugar) and oxygen. The glucose is used as a source of energy for the tree, while the oxygen is released into the atmosphere as a byproduct. This oxygen is essential for the survival of many living organisms, including humans, as we rely on it for respiration.

Explanation
Bauxite is a mineral that can be processed to extract aluminum. It is the main source of aluminum and is commonly used in the production of various aluminum products such as cans, foils, kitchen utensils, and construction materials. The extraction process involves refining bauxite to remove impurities and converting it into alumina, which is then electrolytically reduced to obtain aluminum metal. Therefore, the correct answer is Aluminium.

Explanation
Wind turbines work well in coastal locations because coastal areas tend to have higher wind speeds and more consistent wind patterns compared to inland areas. The presence of open spaces and unobstructed airflow near the coast allows wind turbines to capture more wind energy, resulting in higher electricity generation. Additionally, coastal areas often have a higher demand for electricity, making them suitable locations for wind farms.

Explanation
The hole in the ozone layer is not caused by burning fossil fuels. It is primarily caused by the release of chlorofluorocarbons (CFCs) and other ozone-depleting substances. These substances are commonly found in aerosol propellants, refrigerants, and industrial solvents. When released into the atmosphere, they break down ozone molecules in the stratosphere, leading to the formation of the ozone hole. While burning fossil fuels does contribute to other environmental issues such as acid rain, global warming, and smog, it does not directly cause the hole in the ozone layer.

Explanation
Coal, oil, and natural gas can be described as non-renewable resources because they are formed over millions of years from the remains of plants and animals. Once these resources are extracted and used, they cannot be replenished within a human lifespan. Therefore, they are considered finite and will eventually run out if not managed properly.

Explanation
Coal, oil, and natural gas are collectively known as fossil fuels because they are formed from the remains of ancient plants and animals that lived millions of years ago. These fuels are non-renewable and take millions of years to form, making them a limited resource. Fossil fuels are widely used for energy production, but their combustion releases carbon dioxide and other greenhouse gases, contributing to climate change and air pollution.

Explanation
Plastic is not a natural resource because it is a synthetic material that is man-made through the process of polymerization. Natural resources are materials that occur naturally in the environment and are not created by humans. Fish, topsoil, and trees are all examples of natural resources as they exist in nature and are not artificially produced.

Explanation
The letters HEP refer to Hydro Electric power. Hydro Electric power is generated by using the force of flowing or falling water to turn turbines, which then generate electricity. This type of power is considered renewable and environmentally friendly, as it does not produce greenhouse gas emissions or air pollution. Hydro Electric power is commonly used in large-scale energy production, such as hydroelectric dams.