A renewable exhaustible natural resource is
coal
petroleum
minerals
minerals
D.
minerals
Forest is renewable, exhaustible natural resource. Renewable resources are living, able to reproduce or replace themselves and to increase. The renewable resources get replenished, recycled or reproduced and can fast forever provided they are not used beyond their renewability. The exhaustible resource is the natural resources with finite stock or supply, they are vulnerable to both qualitative and quantitative degradation.
Coal and petroleum are non- renewable and exhaustible natural resources.
Minerals are renewable and inexhaustible natural resources.
Which two of the following changes (1-4) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more)?
1) Increase in red blood cell size
2) Increase in red blood cell production
3) Increase in breathing rate
4) Increase in thrombocytes count
Changes occurring are
(2) and (3)
(3) and (4)
(1) and (4)
(1) and (4)
Which one of the following is not used in organic farming?
Glomus
Earthworm
Oscillatoria
Oscillatoria
dB is a standard abbreviation used for the quantitative expression of
the density of bacteria in a medium
a particular pollutant
the dominant Bacillus in a culture
the dominant Bacillus in a culture
The two gases making highest relative contribution to the green house gases are
CO2 and CH4
CH4 and NO2
CFCs and N2O
CFCs and N2O
