Which plants die after flowering?
A. Lotus
B. Bamboo
C. Chrysanthemum
D. Butea
Author: Aroma Ann
Example of primary pollutant is __________?
A. SO2
B. NO2
C. CO
D. hydrocarbons
Although the polar regions radiate away more heat energy than they receive by insulation in the course of a year, they are prevented from becoming progressively colder each year by the__________?
A. Conduction of heat through the interior of the earth
B. Concentration of earth’s magnetic field lines at the poles
C. Circulation of heat by the atmosphere and oceans
D. The insulating properties of snow
E. Release of latent heat to the atmosphere when polar ice melts
Which one is true?
A. symbiosis when neither population affects each other
B. symbiosis when the interaction is useful to both the populations
C. commensalism when none of the interacting populations affect each other
D. commensalism when the interaction is useful to both the populations
Rising air cools by this process of __________?
A. Expansion
B. Evaporation
C. Compression
D. Condensation
Continue reading “Rising air cools by this process of __________?”
The __________ holds a planet’s atmosphere close to its surface.
A. Radiation
B. Gravity
C. Cloud cover
D. Moisture
E. Pressure
Continue reading “The __________ holds a planet’s atmosphere close to its surface.”
A population is a group of __________?
A. individuals in a species
B. species in a community
C. communities in an ecosystem
D. individuals in a family
_________ element had guided the earlier navigators to keep them on right path.
A. Magnetite
B. Carbon
C. Coal
D. Uranium
Heat is energy in the process of being transferred from __________?
A. Hot objects to cold objects
B. Low pressure to high pressure
C. Cold objects to hot objects
D. High pressure to low pressure
E. Regions of low density toward regions of high density
Continue reading “Heat is energy in the process of being transferred from __________?”
Warming in the stratosphere is mainly caused by __________?
A. Absorption of ultraviolet radiation by ozone
B. Release of latent heat energy during condensation
C. Chemical reactions between ozone and chlorofluorocarbons
D. Frictional heating caused by meteorites
Continue reading “Warming in the stratosphere is mainly caused by __________?”
