Because its various parts are always changing, an ecosystem can be described as ____

a. open
b. spatial
c. Static
d. closed
e. dynamic


e

Environmental & Atmospheric Sciences

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The overwhelming majority of tornadoes kill

A) people living in "tornado alley." B) people living in Florida. C) people living in the Congo basin of central Africa. D) no one.

Environmental & Atmospheric Sciences

Given the compounds 2-methyl-1-pentene and 3-methyl-1-pentene, which of the following statements is true?

A) Only 2-methyl-1-pentene is chiral. B) Only 3-methyl-1-pentene is chiral. C) Both are chiral. D) Neither is chiral.

Environmental & Atmospheric Sciences

Households and workplaces produce five major types of recyclable materials. What are these materials?

What will be an ideal response?

Environmental & Atmospheric Sciences

Sound can kill when it is at ____ dbA.

A. 20  B. 40  C. 70 D. 100 E. 180

Environmental & Atmospheric Sciences