1. Which of the following is not a part of Geographic Information System (GIS)?

(A) Projection
(B) Overlay
(C) Reclassification
(D) Measuring distance and connectivity

2. The soil type which is good for agriculture is

(A) Podozols
(B) Latosols
(C) Serpent soil
(D) Solonachak

3. The settling of discreet, non-flocculating particle in a dilute suspension is known as

(A) Class-I sedimentation
(B) Class-II sedimentation
(C) Class-III sedimentation
(D) Compression

4. Which one of the following is the single most important reactive intermediate species in atmospheric chemical processes?

(A) OH.
(B) O2.–
(C) ROO.
(D) OH

5. Removal of top fertile soil by water is called

(A) Leaching
(B) Siltation
(C) Weathering of soil
(D) Soil erosion

6. The rate of settling of air-borne particles in the atmosphere varies with their aerodynamic diameter (d) as

(A) α d
(B) α d2
(C) α d3
(D) α d½

7. The smokestack plumes exhibit ‘coning’ behaviour when

(A) Stable atmospheric conditions exist
(B) Atmosphere is unstable
(C) The height of the stack is below the inversion layer
(D) Inversion exists right from the ground surface above

8. Photodissociation of NO2 occurs in the presence of photons of wavelength,

(A) < 0.39 μm
(B) 0.5 – 0.6 μm
(C) 0.6 – 0.65 μm
(D) 0.65 – 0.7 μm

9. Peroxyacetyl Nitrate (PAN) is formed by oxidation of

(i) Hydrocarbons
(ii) Isoprene
(iii) Terpene
(iv) Arsenic

Choose the correct answer from the codes:

(A) (i) and (iv)
(B) (ii) and (iv)
(C) (iii) and (iv)
(D) (i), (ii) and (iii)

10. Chaparral, Maquis, Encinous, Melleseab are important areas of

(A) Tropical deciduous woodland
(B) Temperate evergreen woodland
(C) Tropical evergreen woodland 
(D) Temperate deciduous woodland

More MCQs on Environmental Issues