Which of the following is an example of lotic ecosystem
Which pyramid is always straight ?
Answer: Pyramid of energy
Which of the following type of materials present in a landslide suggest that the movement was rotational ?
Answer: Rock slump, Debris slump, Earth slump
Which of the following parameters is not a good indicator of contamination in ground water ?
On an aerial photograph, the distance between the principal point and the conjugate principal point is called
An equatorial west to east remote sensing satellite orbiting the earth at an altitude of 36,000 km is called
Answer: Geostationary satellite
On burning a certain amount of fuel a total of 500 million tonnes of CO2 is released to the atmosphere. If the entire amount of CO2 remains in the atmosphere, what will be the rise in the concentration of CO2 in ppm ?
A thermal power station has a heat rate of 12 mJ/kWh. Its thermal efficiency is
Assume that world coal production is 6.1 billion tons per year and estimated total recoverable resources of coal is 1.1 trillion tons. How long it would take to use up those reserves at current rate of production ?
In a salt gradient solar pond, the salinity generally varies from top to bottom of the pond as
Which region among the following is not Atmospheric Brown Cloud (ABC) hotspot ?
Azolla pinnata is a
Photolysis of NO2 occurs due to radiations of wavelength
The efficiency of removing SO2 from the flue gas by limestone in wet scrubbers can be as high as
The depth of the oxidation ponds is typically