Which one is nature’s cleaner?
A. Consumers
B. Producers
C. Decomposers and Scavengers
D. Symbionts
Author: Aroma Ann
If the air temperature remains constant, evaporating water into the air will _________ the dew point and _________ the relative humidity.
A. Increase, increase
B. Increase, decrease
C. Decrease, increase
D. Decrease, decrease
The presence of high coliform counts in water indicates __________?
A. contamination by human wastes
B. phosphorus contamination
C. decreased Biological Oxygen Demand
D. hydrocarbon contamination
Continue reading “The presence of high coliform counts in water indicates __________?”
As the air temperature increases, with no addition of water vapor to the air, the dew point will __________?
A. Remain the same
B. Increase
C. Decrease
D. Increase and become equal to the air temperature
Green House effect is caused by __________?
A. Increase in CO2
B. Increase in O2
C. Decrease in O2
D. Decrease in CO2
Continue reading “Green House effect is caused by __________?”
As it travels along the food chain, the concentration of DDT __________?
A. increases
B. remains constant
C. decreases
D. fluctuates randomly
Average total rainfall is 100 – 150 cm in __________ , located in Australia, South America and Africa.
A. tropical savannas
B. chaparrals
C. deciduous forest
D. temperate forest
In grazer food chain the living plants are directly __________?
A. destroyed
B. consumed
C. decayed
D. grown
Continue reading “In grazer food chain the living plants are directly __________?”
As the air temperature increases, with no addition of water vapour to the air, the relative humidity will __________?
A. Remain the same
B. Increase
C. Decrease
D. Increase until it becomes equal to the dew point temperature
The source of energy in an ecosystem is __________?
A. ATP
B. Sunlight
C. D.N.A
D. R.N.A
Continue reading “The source of energy in an ecosystem is __________?”
