A 2-m long water wave that oscillates up and down 3 times each second has a wavelength of
A. 6 m.
B. 3 m.
C. 2 m.
D. none of the above
Answer: C
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Philip Levin, Donald Levin and other biologist have cautioned us that speciation rates can increase for opportunistic species such as
a. Fish b. Birds c. reptiles and birds d. birds and weeds e. weeds, rodents and cockroaches
Why might a small piece of chalk made of calcium carbonate be useful for alleviating acid indigestion?
A) Calcium carbonate is a base that reacts to neutralize any excess acids. B) Calcium carbonate is able to absorb excess acid and carry it out of the system. C) Calcium carbonate is able to add an extra lining to the stomach to protect it from the excess acid. D) Calcium carbonate is able to turn the acid into a gas which can relieve the build-up of excess acid.
A burrowing animal is digging its tunnel through rocky soil, moving fresh material to the surface. How is this animal contributing to the weathering of that material?
What will be an ideal response?
The sport of __________ is Canada's most prevalent sport and its most popular spectator sport.
-ice hockey -lumberjacking -bull riding -curling -Canadian rules football