Secondary rainbows occur when ____
A) two internal reflections of light occur in each raindrop
B) light refracts through ice crystals
C) a single internal reflection of light occurs in each raindrop
D) light refracts through a cloud of large raindrops
A
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A tentative explanation that needs further investigation is called a(n) ____________________
Fill in the blanks with correct word
The biggest loss of sea ice between 1979 and 2015 appears to be along the
A) north shore of Russia.
B) east shore of Greenland.
C) west shore of Greenland.
D) north shore of Alaska.
A monocultural agriculture community is
A) not stable, but resilient B) neither stable nor resilient C) stable, but not resilient D) both stable and resilient E) moderately stable and resilient if agriculturalists take proper measures.
In succession, facilitation refers to ________
A) species creating competition for food and water making it harder for species succession B) species sharing space, environment, and resources C) the migration of plant species D) competition for space by different populations of species E) species altering the environment around them in ways that make it more habitable for other species