1.
_______________ species have an extremely high impact on ecosystem, and it define the entire ecosystem population
2.
The percentage of CO2 in the atmosphere is approximately__________
3.
________ describes attempt of two or more organisms to utilize the same resource
4.
________ is the process of progressive and irreversible degradation of the biological community and soil cover
5.
__________ are chemically charged soil particles
6.
_______________ organisms obtain their food from decaying organic matter
7.
Indus water treaty was signed in __________
8.
__________ is the major constraint to crop productivity in arid climates
9.
The species are _________ extinct if they persists at such reduced number that its effect on other species is negligible
10.
_______________is a pollutant that is resistant to degradation and takes years to break down
11.
__________ has the lowest water holding capacity
12.
Evapotranspiration is primarily driven by --------- energy
13.
____________ plants can fix atmospheric nitrogen through nodules
14.
El Nino is __________
15.
Air pollution with _______is an environmental problem in Pakistan, which mainly occurs during September to December months
16.
Environmental studies deals with the _________________.
17.
_______________ is a small area where large number of endangered and threatened species are found among endemic species
18.
According to the Sustainable Development Goal 13, the biggest threat towards development is
20.
IUCN Red List System was founded in __________.
21.
__________ are the smallest soil particles
22.
The percentage of oxygen in the atmosphere is approximately__________
23.
Public water supplies are often evaluated for biological contamination by testing for the presence of___________
24.
PEPA is abbreviation of __________
25.
____________ is the most abundant greenhouse gas in the atmosphere
26.
__________ has the highest water holding capacity
27.
____________ is the average atmospheric conditions over a long period of time and larger area
28.
La Nina is __________
29.
________ is the scientific study of repairing disturbed ecosystems through human intervention
30.
After the ____ amendment in the constitution of Pakistan, PEPA 1997 was amended in 2012
31.
__________ describes ability of an organism to produce abundant offspring or eggs
32.
BOD is abbreviation of
33.
pH is negative log of _____________concentration
34.
Branch of agriculture which study ecological interactions in agroecosystems is called_______
35.
The NEQS stands for ______________
36.
Study of interactions of crops with their environment is called_______
37.
Land degradation and erosion is fundamentally associated with _______.
39.
COD is abbreviation of
40.
________is a plan or statement of intentions- either written or stated – about a course of action or inaction intended to accomplish some end.
41.
GMO is abbreviation of
42.
____________ is one the ozone-depleting substances
44.
________ is the process of progressive and irreversible degradation of the biological community and soil cover
45.
World environment day is celebrated on_______
46.
__________ are the largest soil particles
48.
In plants _______________ is the gross production minus respiration
49.
The concept of greenhouse gases was postulated by_________
50.
Acid rain is caused by the release of ________ into the atmosphere.
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This section is very helpfull for students and also create an oppertunity to increse knowledge and able to solve any test for envirenmental Science jobs.
Very helpful.
This section is very halpful for all student and halp to increase our knowledge