Which of the following features best describes this object?
A. planetary nebula
B. spiral galaxy
C. blue star
D. barred spiral galaxy
Answer: C
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Why is organic food a positional good?
a) Organic food is limitless in supply and therefore is aptly positioned for economic gain. b) Organic food is expensive and thus a ready source for social display for those in a position to pay for it. c) All social classes can access affordable organic food. d) All of the above.
Which process has been largely responsible for increasing the amount of CO2 in the last 200 years?
A) Increasing cattle ranching worldwide B) Disintegration of petroleum-based plastics C) Use of industrial fertilizers D) Burning of fossil fuels
What type of plate boundary is depicted in this figure?
A. ocean-continent convergent boundary B. transform boundary C. ocean-ocean convergent boundary D. continental collision boundary E. oceanic divergent boundary
Which of the following is not an adaptation for deep diving in Cetaceans?
A) Blood flow is shifted from the brain to the extremities B) Collapsing the lungs to compensate for increasing water pressure during deep dives C) Having a lot of myoglobin in the muscles to store oxygen D) Having increased hemoglobin concentrations to store more oxygen E) Slowed heart rate