An infrared thermometer operates by way of
A. radiant energy invisible to humans.
B. conduction, convection, and radiation.
C. temperature differences.
D. none of the above
Answer: A
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What is the global, long term-change to sea level?
a. Active change b. Temporal change c. Eustatic change d. Passive change
Earth consists of two types of crust: lithospheric and oceanic
Indicate whether the statement is true or false
Which of the following is true of a hypothesis?
A) It is a tentative idea or explanation which can be disproved by an experiment. B) It is a tentative idea or explanation which can be proven by an experiment. C) It is a tentative idea which can either be proven or disproved by an experiment. D) It is a belief which is asserted without proof.
Volatile organic compounds (VOCs) represent a class of organic compounds that are mainly____________________, containing only hydrogen and carbon
Fill in the blank with correct word.