Thick clouds of smoke containing soot and other particles coming out of the factories cause health problems for nearby people. Such as irritation of eyes and:

Related Mcqs:

1. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

2. The waste of steel factories is rich in:

   A. Cyanides and phenols
   B. Chlorides and fluorides
   C. Carbonates and sulphides
   D. Bicarbonates and chlorides

3. According to Geiger, the percentage of light reflected by the clouds is:

   A. 9%
   B. 10%
   C. 48%
   D. 39%

4. The extent of darkness caused due to smoke can be determined by the help of:

   A. Smoke filters
   B. Ringelmann’s charts
   C. Horizontal microscopes
   D. All of these

5. The percentage of air pollution caused due to smoke:

   A. 10-15%
   B. 15-20%
   C. 20-25%
   D. 2-5%

6. Plants growing near sea shore will usually have xerophytic characters, like thick leaves, because:

   A. There is plenty of water in the soil
   B. There is too high a concentration of salts for the plants to absorb sufficient water from the soil
   C. Light available to plant is not sufficient
   D. The soil is muddy

7. Thick cuticles on leaves are typical of plants growing in:

   A. Wet habitats
   B. Warm habitats
   C. Dry habitats
   D. Cool habitats

8. In coming years, skin related disorders will be more common due to:

   A. Pollutants in air
   B. Use of detergents
   C. Water pollution
   D. Depletion of O3 layer

9. Soil that is made-up of particles, that have been carried in water and thus deposited, is called:

   A. Silt
   B. Clay
   C. Sub-soil
   D. Loam

10. Properties of ‘Sand Particles’ are:

    A. Composed of mineral quartz
    B. Larger is size
    C. Have large pores due to which they
    D. Do not retain water/nutrients
    E. All of the above