Kilocalorie is equal to
10 calories
100 calories
1000 calories
10, 000 calories
Percentage of light falling on the earth used for photosynthesis
1.5%
less than 1.5%
more than 1.5%
1.5% to 3.5%
Animals which use light for communicating with their mates
insects
fire flies
cockroachs
none of the above
Good variety of wood used for cooking is
half- dried
undried
wood which burns without smoke
none of these
Life process useful for synthesis of food by plants is
respiration
transpiration
ascent of sap
photosynthesis
Net amount of energy accumulated by all organisms is
energy obtained - energy spend to various life processes
energy obtained + energy spend for various life processes
both a and b
Biomass is the total amount of
dry mass of organic matter produced in an ecosystem
food produced in an ecosystem
energy accumulated by the organism
energy expanded by the organisms
Energy in the small particles of light is a kind of
bond energy
chemical energy
thermal energy
electromagnetic radiation
One calorie is equal to
4.2 joules
4.3 joules
4.1 joules
4.4 joules
Example for active transport is
pumping of water to overhead tank
carrying a boulder to the top of the hill
both of the above