If spreading centers are creating new seafloor in the center of the ocean basins, then the oldest sediment and rocks will be found on the seafloor ____ .
A ) farthest from the spreading center
B ) closest to the spreading center
C ) within 500 kilometers of hot spots
D ) over 2500 kilometers from hot spots
A ) farthest from the spreading center
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When using composting piles, it is important to _____.
A. fertilize the compost pile B. mix or rotate them and avoid adding hazardous materials C. dispose of the compost on a regular basis D. avoid adding food products or similar items E. avoid adding weeds and other plants
All atoms of the same element have the same atomic number. Indicate whether the statement is true or false
PPP in GNI PPP accounts for:
A) petroleum exports B) how much a person's income can really buy C) life expectancy D) gender inequality
Atoms of which of the following elements are smallest?
A) Ca B) K C) Mg D) Na