Greenhouse gases
1. Absorbs all sunlight and warm the atmosphere
2. Include gases such as CO2 and O2
3. Are responsible for ozone layer formation
4. Are mainly CO2 and CH4
Biomagnification will be maximum among which of the given trophic level in an aquatic ecosystem?
1. T1
2. T2
3. T3
4. T4
What steps should be taken for the disposal of nuclear waste?
1. Nuclear waste should be pre-treated
2. It should be stored in shielded containers
3. It should be buried about 500 m deep within the rock
4. All of the above
Polyblend is mixed with ...A... to lay roads in ...B... Complete the given statement by choosing appropriate option for A and B :-
1. A-bitumen; B-Bengaluru
2. A-carbon; B-DelhI
3. A-plastic; B-Kolkata
4. A-cement; B-Chennai
E-wastes are buried in ...A.. or ...B....
Complete the given statement by choosing the appropriate option for A and B:-
1. A-landfills; B-incinerated
2. A-open area; B-recycle
3. A-dumping zone; B-recycle
4. A-open area; B-incinerated
Match the items in column I and column II and choose the correct option :-
|
Column I |
|
Column Il |
A |
UV rays |
i |
Biomagnification |
B |
Biodegradable organic matter |
ii |
Eutrophication |
C |
DDT |
Iii |
Snow blindness |
D |
Phosphates |
iv |
BOD |
The correct match is :-
1. A-ii, B-i, C-iv, D-iii
2. A-iii, B-ii, C-iv, D-i
3. A-iii, B-iv, C-i, D-ii
4. A-iii, B-i, C-iv, D-i
How much percent forest cover was recommended for hills by National forest policy (1988) ?
1. 33
2. 67
3. 40
4. 30
Amrita Devi Bishnoi Award is given to individuals or communities from rural areas that have shown extraordinary courage and dedication in
1. Protecting wildlife
2. Minimizing the ODS
3. Organic farming
4. Biotechnology
Eco-san toilets are not associated with which of the following?
1. Are working in Sri Lanka and Kerala
2. Composting method for recycling of human excreta
3. Recycled material forms natural fertilizer
4. Enhance the need for chemical fertilizers
Cleaning of wastewater in Arcata Marsh involves
1. Only conventional method of sewage treatment
2. Removal of dissolved heavy metals through a biological process
3. Filteration, chlorination like chemical processes
4. Utilisation of microorganisms only for pollution control