Environmental Issues
Environmental Issues: Overview
This topic covers concepts, such as, Soil Pollution, Effects of Water Pollution,Effects of Air Pollution and Agricultural Wastes etc.
Important Questions on Environmental Issues
Which of the following cannot be considered a major cause of air pollution in metro cities?
In which of the following pollution electrostatic precipitator of a thermal plant fails to function?
Which of the following impurities are colloidal in nature?
Particulate are considered as major cause of:
Which of the following set represent the effect of noise pollution on human health?
Nitrogen oxides, produced from the emission of automobiles and power plants, are the source of fine air borne particles which lead to
Which of the following is biodegradable pollutant?
Match List I with List II
| List I Industry | List II Waste Generated | ||
| (A) | Steel plants | (I) | Gypsum |
| (B) | Thermal power plants | (II) | Fly ash |
| (C) | Fertilizer Industries | (III) | Slag |
| (D) | Paper mills | (IV) | Bio-degradable wastes |
Choose the correct answer from the options given below :
The air of only City 1 and City 3 are safe for breathing. What is the AQI limit for safe breathing?
Which city’s air is the most polluted? Explain your answer.
The table shows the properties of four water samples.
| Water Sample | Smell | Colour |
| Sample 1 | No smell | Slightly muddy |
| Sample 2 | Strong bad smell | Muddy and greenish |
| Sample 3 | Very light smell | Colourless |
| Sample 4 | No smell | Colourless |
In which water source will the survival of aquatic animals be the most difficult?
Seema fills four similar fish tanks with freshwater from different sources. She puts six freshwater fish in each tank. The table shows her findings after two days.
| Tank | Findings |
| Tank 1 | All fish are dead. |
| Tank 2 | 1 fish is dead, and 5 fish are alive. |
| Tank 3 | All fish are alive. |
| Tank 4 | 2 fish are dead, and 4 fish are alive. |
Seema repeats the activity by putting only one fish in each tank. Can she rely on the results this time? Explain your answer.
Seema fills four similar fish tanks with freshwater from different sources. She puts six freshwater fish in each tank. The table shows her findings after two days.
| Tank | Findings |
| Tank 1 | All fish are dead. |
| Tank 2 | 1 fish is dead, and 5 fish are alive. |
| Tank 3 | All fish are alive. |
| Tank 4 | 2 fish are dead, and 4 fish are alive. |
Which tank is likely to have been filled with the most polluted water?
Refer to the given Venn diagrams. Which among the following would most likely be 'X' and 'Z' respectively?
Particulates of size pose greatest risk to human health.
Define water pollution. Write causes and control of water pollution.
Among the following, the most important phytotoxic pollutants are:
