10 câu hỏi
Choose the word that is of the different topic (or part of speech) from the others.
Scottish
Venus
Neptune
Saturn
Choose the word that is of the different topic (or part of speech) from the others.
chemist
scientist
litter
interviewer
Thomas Edison was one of the (11) ______ inventors of the world.
great
greatest
greater
greater and greater
He was responsible for more than one thousand (12) _____ including the electric light bulb and the record player.
inventors
inventions
invention
Invented
When he was 10 years old, he set up a small laboratory after he (13) _____ a science book his mother showed him.
reading
read
was read
had read
He developed many devices that brought great (14) _____ to people’s life.
benefits
science
invention
Dangers
What is groundwater?
The water beneath the Earth’s surface
A type of pollution
Water from lakes
The water from rivers
What are point source pollutants?
Industrial waste and pollutants from storm water
Pesticides, herbicides and the atmosphere
Sewage from households and factories.
Industrial waste, sewage, pesticides anh herbicides.
Why do people use herbicides?
to kill insects
to kill weeds
to pollute water
to kill aquatic plants
If the drinking water is untreated, an outbeak of _____ may happen.
diseases
water pollution
animals’ death
cholera