ENVIRONMENTAL EDUCATION
1. CO2 , NO2, CFC (Chloro Fluro Carbons) are examples for ________________.
2. Green house gasses maintain temperature on earth. Excess presence of these gasses causes _______________.
3. _____ are used in refrigerators and air conditioners.
4. Presence of solid particles and liquid droplets present in air are called ___________ (aerosols).
5. __________ stands first place in our country in utilizing solar energy.
6. ____________ is energy efficient and generate little heat.
7. There will be better yield if we grow _________ plants in the field by attracting more __________.
8. The three “R”s are ______________________.
9. Waste materials produce ________ gas.
10. Substances that are broken by down by biological process are said to be _________________.
11. _______ explained about fluorine in 1771. In 1886 ________ separated fluorine element from its ore.
12. Drinking of fluorine polluted water causes ________.
Nice
More than bits in biology
Very nice, easy to practice
its really easy