Take a quick look at environment pollution.
Take a quick look at environment pollution.
Environmental pollution is the effect of undesirable changes in our surroundings that have harmful effects on plants, animals and human beings.
A substance, which causes pollution, is known as pollutant. Pollutants can be solid, liquid or gaseous substances present in greater concentration than in natural abundance and are produced due to human activities or due to natural happenings.
Some pollutants can be degredable, like discarded vegetables. But some pollutants which are slowly degradable remain in the environment in an unchanged form for many decades. For examples, plastic materials, heavy metals, nuclear wastes, $DDT$ and other many chemicals. These types of substanes once released into the environment are difficult ot remove. These pollutants cannot be degraded by natural processes. So they are harmful to living organisms. In the process of environmental pollution, pollutants originate from a source and get transported by air or water or are dumped into the soil by human beings.
Similar Questions
Explain in short : Pollution of troposphere done by hydrocarbon.
Explain in short : Pollution of troposphere done by hydrocarbon.
Write down the reactions involved during the formation of photochemical smog.
Write down the reactions involved during the formation of photochemical smog.
What are the effects of smoking habits for pregnant women ?
What are the effects of smoking habits for pregnant women ?
Match List$-I$ with List$-II$
List$-I$
List$-II$
$(a)$ $2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow$ $2 \mathrm{SO}_{3}(\mathrm{~g})$
$(i)$ Acid rain
$(b)$ $\mathrm{HOCl}(\mathrm{g}) \stackrel{\mathrm{h} \nu}{\longrightarrow}$
$\dot{\mathrm{O}} \mathrm{H}+\dot{\mathrm{Cl}}$
$(ii)$ Smog
$(c)$ $\mathrm{CaCO}_{3}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow$
$\mathrm{CaSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}$
$(iii)$ Ozone depletion
$(d)$ $\mathrm{NO}_{2}(\mathrm{~g}) \stackrel{\mathrm{h} v}{\longrightarrow}$
$\mathrm{NO}(\mathrm{g})+\mathrm{O}(\mathrm{g})$
$(iv)$ Tropospheric pollution
Choose the correct answer from the options given below.
Match List$-I$ with List$-II$
| List$-I$ | List$-II$ |
| $(a)$ $2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow$ $2 \mathrm{SO}_{3}(\mathrm{~g})$ | $(i)$ Acid rain |
|
$(b)$ $\mathrm{HOCl}(\mathrm{g}) \stackrel{\mathrm{h} \nu}{\longrightarrow}$ $\dot{\mathrm{O}} \mathrm{H}+\dot{\mathrm{Cl}}$ |
$(ii)$ Smog |
|
$(c)$ $\mathrm{CaCO}_{3}+\mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow$ $\mathrm{CaSO}_{4}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}$ |
$(iii)$ Ozone depletion |
|
$(d)$ $\mathrm{NO}_{2}(\mathrm{~g}) \stackrel{\mathrm{h} v}{\longrightarrow}$ $\mathrm{NO}(\mathrm{g})+\mathrm{O}(\mathrm{g})$ |
$(iv)$ Tropospheric pollution |
Choose the correct answer from the options given below.
- [NEET 2021]
What would have happened if the greenhouse gases were totally missing in the earth'satmosphere ? Discuss.
What would have happened if the greenhouse gases were totally missing in the earth'satmosphere ? Discuss.