Which of the following is true of natural gas?
What will be an ideal response?What will be an ideal response?
the price is kept artificially low by subsidies
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It has been proposed that the reason that the Pacific Ocean has many more coral reefs than the Atlantic Ocean is that
A) the Atlantic Ocean is too saline for many coral species. B) the ocean currents in the Atlantic are too swift to allow for coral reefs to develop unimpeded. C) the last glacial advance left the Atlantic too cold to allow coral to survive. D) there are too many large rivers discharging polluted waters into the Atlantic basin to support as many coral reefs as in the Pacific, which is much larger and more immune to the pollution.
Humidity is a measure of the amount of water vapor in the atmosphere. Why is humidity always very low inside your kitchen freezer?
A) because the kitchen freezer is most often sealed off from the atmosphere B) because the frost in the freezer absorbs this moisture C) because it is not possible for water to be in the gaseous phase at temperatures below 0°C D) because at the cold temperatures of your kitchen freezer, water molecules in the vapor phase are moving relatively slowly, which makes it easier for them to stick to inner surfaces within the freezer or to other water molecules.
The mixing ratio has the most in common with this measure of water vapor:
A) relative humidity. B) absolute humidity. C) specific humidity. D) saturation vapor pressure.
Approximately what percentage of blood plasma is water?
A) 15% B) 30% C) 60% D) 90%