An example of a positive feedback loop ________
A) is melting arctic snow exposing dark surfaces that heat up and cause further melting
B) are predators eating most of their prey and then declining in numbers
C) is a pond becoming more acidic as a result of pollution
D) are birds migrating south in response to colder temperatures
E) is a thermostat turning on the furnace as the temperature drops
A
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A variety of oranges that have been selectively bred to be juicer and sweeter are a result of
A. natural selection. B. artificial selection. C. adaptation. D. reproductive isolation. E. differential reproduction.
What allocates resources?
a. The economic system of supply and demand b. The amount of easily accessible resources c. The impact of mining operations on an ecosystem d. The government of the United States
How many carboxylic acids have the molecular formula C5H10O2?
A) 1 B) 2 C) 3 D) 4
Thermosphere
What will be an ideal response?