How would you classify the following material? swimming pool water
A) homogeneous mixture
B) heterogeneous mixture
C) a pure element
D) a pure compound
E) depends on how many children have been in it
A
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What change has occurred in the number of environmental refugees between 1995 and 2011?
A. increased greatly B. remained the same C. decreased D. barely increased
Bacteria and fungi are typically categorized as which of the following ecosystem components?
a. Autotrophs b. Producers c. primary consumers d. tertiary consumers e. Decomposers
Which of the following is NOT an essential component of sustainable development?
A. Increasing reliance on renewable resources B. A marked decrease in military spending C. Low birth and death rates D. A broader sharing of the benefits of development E. All of these are components of sustainable development
The smallest temperature increases due to global warming are expected in the middle latitudes
Indicate whether the statement is true or false