Changes in daylength, the Sun's altitude above the horizon, and the Sun's declination over the course of the year
A) are phenomena that occur only at the equator.
B) are factors that follow an irregular, random cycle.
C) are responsible for the seasons.
D) produce Earth's rotation.
C
You might also like to view...
Paleozoic and Mesozoic marine invertebrate faunas differ primarily because ____
a. mammals had not yet evolved in the Paleozoic b. birds had not yet evolved in the Paleozoic c. most Paleozoic faunas were nektonic d. Mesozoic fauna with hard and soft parts burrowed in the sediment e. more Mesozoic fauna were nektonic
The collision-coalescence process:
A) is most common at high latitudes. B) is most frequent in cold clouds. C) is dependent upon the different downward velocities of different-sized droplets. D) explains the formation of snow better than it explains the formation of rain.
Oil and gas-bearing formations several thousand feet below the surface are blasted under high pressure with large quantities of water, sand, and chemicals, cracking the rock to release trapped oil and gas. This is called:
A) hydro-therming B) water cracking C) fracking D) chapping
Places on Earth that have similar climates often support plants and animals with similar physical and physiological traits. The best explanation of this phenomenon is ________
A) divergent evolution B) migration of species C) convergent evolution D) speciation E) natural selection