Підсумкова. Англійська мова 9 клас. 3 частина.

Which of these is an example of a renewable energy source?

What is the main role of a biologist?

Who is known for inventing the telephone?

What causes air pollution in big cities?

If we ____ (switch) to renewable energy sources, we will be able to reduce pollution.

If humans ____ (continue) to cut down forests, many species will lose their habitats.

The first vaccine ___ by Edward Jenner in 1796.

If the scientists ____ (discover) a cure for cancer, it would change the world.

Many useful apps ___ every year to make life easier.

Unjumble the sentence:

need / we / stop / to / pollution

cleaner / we / if / will / reduce / the / environment / pollution/be

will / live / if / plants / people / we / without / die

A scientist who studies weather patterns is called a meteorologist.

The greenhouse effect helps keep the Earth warm and supports life.

A biologist is someone who invents new machines.

Find mistakes if any.

If we use renewable energy, we will reduce the emissions of greenhouse gases.

The scientists which helped develop and work with electricity were Nikola Tesla and Thomas Edison.

If I will plant a tree, it will help the environment.

A scientist invents new devices to help solving the world problems.

People must protect nature and keep clean the environment.