Shifting cultivation is characterized by the practice of rotating ________ to maintain soil fertility
A) crops
B) fields
C) chemicals
D) farm animals
E) ownership
Answer: B
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Fertilization occurs in the
A. oviduct. B. ovaries. C. uterus. D. either B or C
Where does groundwater discharge naturally?
A)only in the ocean B)only in springs C)only in streams D)only in aquifers E)wherever the groundwater table intersects the ground surface
In order to determine how far lightning is from your observation point
A) count the seconds from flash-to-bang and divide by ten. B) count the seconds from flash-to-bang and divide by five to get miles. C) listen to your AM radio and count the seconds from loud static to hearing the thunder and divide by ten. D) count the seconds from flash-to-bang and divide by 30.
Answer this question that relates to the sea level change graph below.
Look at the far left of the graph (about 13,000 years ago). How did salinity in the oceans 13,000 years ago compare to salinity in the oceans today?
A. Same salinity as today B. Less salty C. Saltier