Although all biological molecules are important, which type of molecule is considered the most important?
A) amino acids
B) carbohydrates
C) lipids
D) proteins
D
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Some products on the market today involving nanotechnology include
A) cars. B) elevators. C) sunscreen. D) cosmetics. E) all of the above
What has been the result for air quality from strict emission controls?
a) Strict emission controls have resulted in a dramatic improvement in air quality. b) Strict emission controls are largely ignored thus air quality has dramatically decreased. c) Strict emission controls have led industrialists to be contrite and to stop polluting. d) The growth in use of automobiles/trucks has wiped out much of the gain from emission controls.
Carbonic acid forms from a combination of ____
A)water and bicarbonate ion B)water and carbon dioxide C)carbon dioxide and hydrogen ion D)calcium ion and bicarbonate ion
The theory of plate tectonics states that the surface of the Earth is made up of one large geological plate that moves slowly across the surface of the Earth
Indicate whether the statement is true or false