Sea otters are considered a ____________________ species
Fill in the blanks with correct word
keystone
Environmental & Atmospheric Sciences
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Which of the following business activities represents a service-flow business?
A. farming B. leasing and servicing copy machines C. selling gasoline D. extracting natural gas E. selling electric bicycles
Environmental & Atmospheric Sciences
As of 2009, the Persian Gulf region was believed to contain _______ percent of the world's oil reserves.
A. 50 B. 68 C. 75 D. 92
Environmental & Atmospheric Sciences
What animal is responsible for building tropical reefs? What is the term for this behavior? What kind
of symbiosis occurs within the tissues of these organisms? What will be an ideal response?
Environmental & Atmospheric Sciences
"Average weather" is an adequate definition of climate
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences