Why do rainbows have a curved shape?
A) The earth is circular.
B) The Sun is a spherical body.
C) Water molecules are circular.
D) The optical process is circularly symmetrical around the path of the sunlight.
D
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Currently the most common way to extract natural gas is by ________.
A. Hydraulic fracturing B. Collecting it from abandoned deep mines C. Collecting it from deep ocean thermal vents D. Separating it from crude oil pockets
Neritic sediments are mainly comprised of biogenous sediments due to the proximity to the continental
shelf. Indicate whether the statement is true or false.
Which of the following would be the least likely cause for the decline of amphibians?
A. habitat destruction B. prolonged rainy periods C. pollution D. increases in UV radiation E. parasites
Around the world, women provide more health care within their families than that provided by all the world's organized health services.
Answer the following statement true (T) or false (F)