This diagram shows how water is used in a nuclear power plant. Water is very important because it helps cool the reactor and carry heat safely. First, water absorbs heat from the reactor, so it does not get too hot. Then, the hot water makes steam, and the steam turns into a turbine to produce electricity with a generator. After that, the steam is cooled in a condenser and become water again. This is called a cycle, and it helps save water.

Water is not only used for energy. In daily life, we use water for drinking, washing, cooking, and cleaning. This shows that water is an essential resource for both industry and people.

This image compares renewable resources and non-renewable resources used to produce energy. Renewable energy includes wind, hydropower, solar, geothermal, and biomass. These sources are naturally replaced in a short time, so they are considered more sustainable and better for the environment. For example, solar panels use sunlight, and wind turbines use moving air to generate electricity.

Non-renewable energy includes oil, coal, nuclear, and natural gas. These resources take millions of years to form and cannot be quickly replaced. Burning fossil fuels like coal and oil releases carbon dioxide (CO₂), which contributes to climate change.

The evidence shows the main differences in availability and environmental impact. However, the diagram is simplified because some renewable systems still cause pollution, and nuclear energy is sometimes debated since it produces low CO₂ but creates radioactive waste.

This evidence shows that microplastics can enter the human body and may be found in organs such as the blood, lungs, liver, and brain. Microplastics are tiny plastic particles formed when larger plastics break down. Because of their small size, they can be inhaled or ingested through food and water. The image of plastic pieces on a fingertip helps us understand how small these particles are.

Scientifically, this suggests a possible risk to human health, as plastics may carry harmful chemicals. It also shows that plastic pollution is not only an ocean problem but also a direct concern for people.