Health
This is the word that describes when a new disease spreads around the world.
What is an epidemic?
Carbon dioxide and other gases that trap heat in the atmosphere are called this.
What are greenhouse gases?
About 97% of the world's water is found in these large bodies of water.
What are oceans?
Smoke from fires causes this type of pollution.
What is air pollution?
This is the type of energy that comes from the sun.
What is solar energy?
The most common cause of death in the world affects this blood-pumping part of your body.
What is your heart?
These large tropical storms are predicted to get worse if oceans continue to get warmer.
What are hurricanes (or typhoons)?
Vietnam has a coast on this ocean, which contains a floating island of garbage that weighs about 87,000 tons.
What is the Pacific ocean?
This material, which lasts for a very long time and doesn't break down, is used in many things, including drinking cups, water bottles, and shopping bags.
What is plastic?
These are commonly known as the Three Rs, and can help the environment if they are followed.
What are reduce, reuse, and recycle?
These annoying insects can give you malaria, dengue, and other dangerous diseases.
What are mosquitos?
Fossil fuels include gasoline, oil, and this black mineral that is burned in many power plants.
What is coal?
This river in Vietnam has much less water in it than it used to, due to China building dams as well as a lower amount of rain.
What is the Mekong river?
These are energy sources that come from plants and animals that died millions of years ago.
What are fossil fuels?
If an energy source never runs out or can be created again and again, it's referred to as this.
What is renewable?
Along with preventing the flu, measles, and many other diseases, new ones of these have just started to be used to prevent COVID-19.
What are vaccinations?
If the polar ice caps melt, this will rise, causing coastal cities to flood.
What is the sea level?
Although they may look like colorful rocks, many reefs are made of these tiny animals. Warming water has made them turn white, instead of their usual prink, read, and orange colors.
What are coral?
When this number is high in Hanoi, you can't spend too much time outside because it's bad for your lungs and other parts of your body.
What is AQI (air quality index)?
This kind of energy can produce lots of clean power, but can also cause illness and death due to the radiation it produces.
What is nuclear power?
This disease affects the pancreas and is treated using insulin. If you have this disease, you have to be careful about how much sugar you eat.
What is diabetes?
What is Antarctica?
This problem has led to there being many fewer fish in the oceans, lakes, and rivers around the world, and means that many animals that live in the water may go extinct.
What is overfishing?
This metal stays in the body and can cause lots of health problems. It can be found in fish, and a lot of it was released in Hanoi when a light bulb factory burned down in 2019.
What is mercury? (Hg)
This kind of energy comes from the force of water, which can be used to spin turbines to make electricity.
What is hydroelectric power?