Fill Blank
Fill Blank question 2/2:
Listen and fill in each gap with no more than two words.
1. Today, mercury is no longer used for domestic
2. Coal used to heat power plants leads to a/an
3. After being deposited in lakes and rivers, mercury gets into the
4. Research is done on how the toxicity of mercury affects
5. Young birds' exposure to mercury makes the bird's song less
6. Male birds infected by mercury may become less
7. Researchers are more
because it is highly toxic.
quantity of mercury in the environment.
to female birds.
when their research is done in laboratories, rather than when camed
out outdoors.
8.
birds can transport mercury far from contaminated areas.
9. In humans, mercury causes
10. An
in language acquisition.
child can be affected by mercury through the contaminated food eaten by the mother.
