Which property tells you the weight of gas compared to air?
a. Specific gravity
b. Flash point
c. Vapor density
d. Vapor pressure
Answer: c. Vapor density
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"Vampire" power is ________
A) power that is stored in an electrical system for use later B) the hidden cost of energy C) when electric currents pass through silicone-rich materials D) energy used when appliance is turned off, but in "standby" mode E) when the majority of the energy produced is converted to kinetic energy that can be used later
Which of the following are affected by the loss of ozone?
A) crop yields B) phytoplankton populations C) immune systems D) eye tissues E) crop yields, phytoplankton populations, immune systems, and eye tissues
Explain the differences between the floral assemblage of the tropical deciduous biome to that of the tropical rainforest
What will be an ideal response?
Binary star systems are very important because they allow
A. measurement of star masses. B. more precise measurement of the spectral type of stars. C. more precise measurement of the distance of stars. D. measurement of the speed of stars. E. more precise measurement of the temperature of stars.