Science
Environmentally Friendly Technology
Grade 9 · Middle School
Answer every question first, then press Finish to see your score and explanations.
- Question 1 of 20Easy
Which of the following energy sources is renewable?
- Question 2 of 20Easy
Which of the following energy sources is non-renewable?
- Question 3 of 20Easy
A solar panel changes sunlight energy into ... energy.
- Question 4 of 20Easy
A wind power plant uses the energy of ...
- Question 5 of 20Easy
An example of saving electrical energy at home is ...
- Question 6 of 20Easy
Environmentally friendly technology is technology that ...
- Question 7 of 20Medium
Using livestock manure to produce biogas shows that ...
- Question 8 of 20Medium
Geothermal energy comes from ...
- Question 9 of 20Medium
Household wastewater should be treated before being released into a river so that ...
- Question 10 of 20Medium
The 3R principle in waste management is ...
- Question 11 of 20Medium
Compost is made from ...
- Question 12 of 20Medium
The advantage of renewable energy over fossil fuels is ...
- Question 13 of 20Medium
LED lamps are more energy-efficient than incandescent lamps because ...
- Question 14 of 20Medium
Separating plastic waste from organic waste before disposal aims to ...
- Question 15 of 20Hard
Look at these energy sources! (1) Coal. (2) Bioethanol. (3) Natural gas. (4) Geothermal. Renewable energy sources are shown by numbers ...
- Question 16 of 20Hard
In a geothermal power plant, steam from inside the Earth is used to ...
- Question 17 of 20Hard
Electric cars are considered more environmentally friendly than gasoline cars because ...
- Question 18 of 20Hard
Treating liquid waste using decomposer bacteria, either aerobically (with oxygen) or anaerobically (without oxygen), aims to ...
- Question 19 of 20Hard
A house installs solar panels on its roof. During the day, the panels produce electricity that is partly used and partly stored in batteries. This step is environmentally friendly technology because ...
- Question 20 of 20Hard
Look at these statements! (1) Saving water use. (2) Burning trash in the home yard. (3) Using public transportation. (4) Cutting down trees around the house. Environmentally friendly behaviors are shown by numbers ...