This a MCQ (Multiple Choice Question) based practice test of Chapter 9 - Environment And Sustainable Development of Economics of Class XI (11) for the quick revision/preparation of School Board examinations
Q ________ is defined as the total planetary inheritance and the totality of all resources
All living elements—the birds, animals and plants, forests, fisheries etc.—are
While all living elements —the birds, animals and plants, forests, fisheries etc.—are biotic elements, abiotic elements include air, water, land
etc. Rocks and sunlight are all examples of abiotic elements of the environment. A study of the environment then calls for a study of the interrelationship between these biotic and abiotic components of the environment.
Following are abiotic elements except
______ resources are those which can be used without the possibility of the resource becoming depleted or exhausted
________ resources are those which get exhausted with extraction
This implies that the resource extraction is not above the rate of regeneration of the resource and the wastes generated are within the assimilating capacity of the environment
Carrying capacity is the maximum number of individuals of a given species that an area's resources can sustain indefinitely without significantly depleting or degrading those resources.
Absorptive capacity means
The maximum amount of waste material that can be naturally absorbed by the environment on a sustainable basis, without causing environmental damage. Absorptive capacity means the ability of the environment to absorb degradation.
Global warming is a
Gases that trap heat in the atmosphere are called greenhouse gases. Carbon Dioxide (CO2); Methane (CH4); Nitrous Oxide (N2O); Fluorinated Gases are the main greenhouse gases.
The atmospheric concentrations of carbon dioxide and CH4 have increased by ____ per cent and ____ per cent respectively above pre-industrial levels since 1750
On Earth, the most important greenhouse gases are – Carbon dioxide (CO2), which causes 9–26% , Methane (CH4), which causes 4–9% , Ozone, which causes 3–7%, Some other naturally occurring gases contribute very small fractions of the greenhouse effect; one of these, nitrous oxide (N2O), is increasing in concentration owing to human activity such as agriculture. The atmospheric concentrations of CO2 and CH4 have increased by 31% and 149% respectively above preindustrial levels since 1750.