Which of the following are true about coliform bacteria?
A. They are used to test water contamination.
B. Coliform bacteria are harmless and cause no disease.
C. They are found naturally in the human intestinal tract.
D. Their presence in water is an indication of fecal contamination.
Choose the most appropriate answer from the options given below :

Why is the concentration of CO₂ more in the Northern Hemisphere than the Southern Hemisphere?
A. Land mass is more in the Northern Hemisphere.
B. Ocean body is more in the Southern Hemisphere.
C. Fossil fuel is burnt more in the Northern Hemisphere.
D. Northern Hemisphere is colder than the Southern Hemisphere.
Choose the most appropriate answer from the options given below :

Increasing the ratio of fissile Uranium (U-235) in natural uranium is known as:

Which of the following are differences between Modified Mercalli Scale (MMS) and Richter Scale (RS)?
A. RS measures the energy released, while MMS measures both energy and devastation.
B. RS uses linear scale, while MMS uses logarithmic scale.
C. Value of RS is constant in an earthquake, while MMS varies depending on distance.
D. Levels in RS are more than MMS.
Choose the most appropriate answer from the options given below :

Match the LIST-I with LIST-II
 

LIST-I(Water quality parameters)		LIST-II(Explanation
A	BOD	I	Strength of organic matter in water
B	DO	II	Acidic/Basic/Neutral nature of water
C	COD	III	Oxygen consumed by micro-organisms
D	pH	IV	amount of oxygen in water

 
Choose the correct answer from the options given below

Which of the following are impacts of hydroelectric power plant?
A. Land-degradation
B. Micro-seismicity
C. Green House Gas Emission
D. Water Pollution
E. Smog Formation
Choose the correct answer from the options given below:

Sound with frequencies below and above the audible frequency range are known as
A. Feeble sound
B. Infrasound
C. Parasound
D. Ultrasound
Choose the correct answer from the options given below:

Arrange the following states in ascending order according to their area under forest cover :
A)Arunachal Pradhesh
B)Chhattisgarh
C)Maharastra
D)Odisha
E)Madhya Pradesh
Choose the correct from the options given below :

Which among the following fuels produces least amount of soot particles during combustion?

The amount of biomass produced by the plants through photosynthesis minus respiration losses in a given time period is known as:

Bitumen is obtained from :

The cloudy nights are warmer compared to clear nights (without clouds) during winter days. This is because :

Largest soil group of India is :

Main pollutant of the Indian coastal water is :

Which species of chromium is toxic in water :

Occurrence of natural hazards is affected by:
(a) Land use changes
(b) Drainage and construction
(c) Ozone depletion
(d) Climate change

Which of the following pollutant gases is not produced both naturally and as a result of industrial activity?

Which of the following pollutants is the major cause of respiratory disease?

Frequent episodes of dense smog in winter season in the National Capital Region (NCR) can be attributed to
(i) Stubble burning
(ii) Biomass burning in rural households
(iii) Transport
(iv) Transboundary movement of pollutants

Municipal Solid Waste (MSW) comprises of
(i) Household waste
(ii) Sanitation residue
(iii) Waste from streets
(iv) Construction and demolition debris

The dominant source of pollution due to oxides of nitrogen (NO _x ) in urban areas is

Which of the following is not a water-bone disease?

In which country, the recent international agreement on phasing out Hydro Fluoro Carbons (HFCs) was signed?

Which of the following natural hazards is not hydro-meteorological?

Inside rural homes, the source/sources of Nitrogen Oxide Pollution may be:
(a) Unvented gas stoves
(b) Wood stoves
(c) Kerosene heaters

Which of the following pollutants can cause cancer in humans?

Which of the following phenomena is not a natural hazard?

World Meterological Organisation’s (WMO) objective has been to reduce the number of deaths to hydrometerological disasters over the decade 2010-2019 by (with reference to the decade 1994-2003)

The factors which are most important in determining the impact of anthropogenic activities on environment are: