About 70% of total global carbon is found in:
Grasslands
Agro ecosystems
Oceans
Forests
Species restricted to a given area are called
sibling
endermic
sympatric
allopatric
Steps taken by the Government of India to control air pollution include:
Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel .
Compulsory PUC (Pollution Under Control) certification of petrol driven vehicles, which tests for carbon monoxide and hydrocarbons .
Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles .
Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks.
A high density of elephant population in an area can result in:
Mutualism
Intraspecific competition
Interspecific competition
Predation on one another
Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
Xerophytes
Mesophytes
Epiphytes
Hydrophytes
Which part of the world has high density of organisms?
Decidous forests
Grassland
Savannas
Tropical rain forests
An ecosystem which can be easily damaged, but can recover after some time if damaging effect stops, will be having:
Low stability and high resilience
High stability and low resilience
Low stability and low resilience
High stability and high resilience
More than 70% of world's fresh water is contained in:
Antarctica
Glaciers and mountains
Greenland
Polar ice
Annual migration does not occur in the case of:
Salmon
Siberian crane
Salamander
Arctic tern
Recently Government of India has allowed mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol ?
2.5%
10 - 15 %
10 %
5%
