Laura And Beths Non-renewable Energy Sources And Power Stations Quiz

Oil is an example of a non-renewable energy source because it is formed from the remains of plants and animals that lived millions of years ago. It takes millions of years for oil to form, and once it is extracted and used, it cannot be replaced within a human lifespan. Therefore, oil is considered non-renewable and its use contributes to the depletion of natural resources.

Solar cells rely on sunlight to generate electricity, which means they are not able to produce electricity at night when there is no sunlight available. This is a significant disadvantage as it limits their ability to provide a continuous and reliable source of power. To overcome this limitation, additional energy storage systems or alternative power sources need to be used, increasing the complexity and cost of the overall system.

Fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei. This process releases a large amount of energy. Therefore, when an atom undergoes fission, it indeed splits into smaller atoms.

Wind farms are considered a disadvantage because they are noisy and unsightly. The large turbines used in wind farms generate noise, which can be disruptive to nearby communities. Additionally, the visual impact of wind farms, with their tall turbines and spinning blades, is often considered unattractive and can negatively affect the aesthetics of the surrounding landscape.

One of the disadvantages of hydroelectric power produced by a dam is that it can lead to the flooding of river valleys and farmland. When a dam is built, it creates a reservoir behind it by blocking the flow of the river. This reservoir can submerge large areas of land, including fertile farmland and natural habitats in river valleys. This can result in the displacement of communities, loss of agricultural land, and disruption of ecosystems.

Nuclear fuels do not produce greenhouse gases, which is an advantage in terms of environmental impact. Greenhouse gases contribute to global warming and climate change, so the absence of their production by nuclear fuels helps to mitigate these issues. This makes nuclear energy a cleaner alternative to fossil fuels, which do emit greenhouse gases. However, it is important to note that while nuclear fuels do not produce greenhouse gases during their operation, the process of mining, refining, and disposing of nuclear waste does have environmental consequences.

Nuclear power does not produce pollutants or hazardous smoke of greenhouse gases like carbon dioxide. It is a clean source of energy that generates electricity through nuclear reactions, specifically nuclear fission. Although nuclear power does produce radioactive waste, it does not contribute to air pollution or greenhouse gas emissions, making it a viable option for reducing carbon emissions and combating climate change.

The given statement is "Coal is cheaper than nuclear power." The correct answer is "False." This means that the statement is not true. It implies that coal is not cheaper than nuclear power.

The given answer accurately defines the terms "non-renewable source" and "non-renewable resource". A non-renewable source refers to a source of making energy that will eventually run out, such as coal or oil. On the other hand, a non-renewable resource is a resource that cannot be reproduced. This explanation clearly distinguishes between the two terms and provides a clear understanding of their meanings.