Question

Plzz answer these 5 questions then i will mark as brainliest!!!!
:):):););)
1)What is ozone layer? How it is getting depleted? Name two CFC gases
2) what is 10 % law?? Write the role of decomposers
3) name the process by nuclear energy generated
4) disadvantage of nuclear fuel
5) what is the chemical formula of plaster of Paris and it's 2 uses and also how can be obtai

Answer 1

1) ozone layer is a layer in earth stratosphere which protect us from harmful UV rays. it is getting depleted due to increase in amount of CFC when they meet ozone , it starts depleting. 2 CFC are : so2 and sometimes Co2.

2)10% law is given by Landermann . according to this law only 10% energy is transformed to next trophic level.
decomposers are the natural cleaning agent of earth. they decompose dead and decaying organisms.

3)2 processes are nuclear fusion and nuclear fission.

4)disadvantages are:
- it is difficult to store and dispose it.
- there is a risk of accidental leakage or nuclear radiation.
- installation cost is high.
5) POP -- CaSO4 . ½H2O.
uses : used to mend fractured bone.
used in toys.
CaSO4. 2H2O ------> CaSO4.½H2O + 1 ½ H2O.


hope it helps.....

Answer 2

hey frd here is ur first answer

(1) Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. ... As mentioned above, when such ozone-depleting chemicals reach the stratosphere, they are dissociated by ultraviolet light to release chlorine atoms.