The direction of flow of ocean currents is determined mainly by the?
prevailing winds and the rotation of the earth
salinity of the ocean and the amount of freshwater inflow
rotation of the earth and land and sea breezes
shape of the continental and the temperature of the continental interior
Correct answer is A
No explanation has been provided for this answer.
The instrument used for measuring atmospheric pressure is?
a thermometer
a wind vane
an anemometer
a barmometer
Correct answer is D
No explanation has been provided for this answer.
A manager o f pulp and paper factory would prefer wood from?
ebony
spruce
teak
mahogany
Correct answer is B
No explanation has been provided for this answer.
The two most important factors influencing the evolution of a climax vegetation are?
soil and topography
soil and time
climate and time
climate and topography
Correct answer is B
No explanation has been provided for this answer.
The primary importance of nitrogen-fixing organisms in the ecosystem is that they?
increase atmospheric nitrogen
enrich the soil
prevent soil erosion
degrade the soil
Correct answer is B
No explanation has been provided for this answer.