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A. The atmosphere’s average temperature would change
B. The length of the year would change
C. The sun’s output would change
D. The mass of the atmosphere would change

A. The visible portion of the spectrum
B. The infrared portion of the spectrum
C. The ultraviolet portion of the spectrum
D. The x-ray portion of the spectrum

A. Air
B. Water
C. Thermal
D. Noise

A. Water boils at a higher temperature with higher altitude
B. The temperature of the boiling water decreases with increasing altitude
C. There is less oxygen in the air at high altitude
D. Saturation vapor pressure decreases with increasing altitude

A. The science that studies the evolution of life,
B. Integrates both social and natural sciences to help us understand how the earth works,
C. The study of the relationships between organisms and their environment
D. The study of the environment in the absence of humans

A. Like a food chain
B. A set of interconnected food chains, illustrating the tropic relationships among species
C. The set of prey species that are consumed by animals in an ecosystem
D. The tropic (feeding) levels that can be observed in an ecosystem

A. Higher than last night’s minimum temperature
B. Lower than last night’s minimum temperature
C. The same as last night’s minimum temperature
D. Above freezing

A. Quantity of biomass in a trophic level at a particular period is called as standing crop
B. The energy content in a trophic level is determined is determined by considering a few individuals of a species in that trophic level.
C. The succession that occurs in newly cooled lava is called primary succession
D. Rate of succession is faster in secondary succession
E. Phytoplanktons are the pioneers in the aquatic ecosystem

A. Higher than at present
B. Lower than at present
C. The same as it is now
D. Much more variable than it is now

A. The maximum theoretical amount
B. None
C. The same as it would at any other temperature
D. Depends on the chemical composition of the object