Which of the following reacts with sugars to form glycosides?
A) alcohols
B) amines
C) hemiacetals
D) water
A
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A parcel of air at the surface is heated, which expands the air and increases the parcel's volume. If the same number of air molecules occupy the greater volume, density decreases. The increase in volume results in lower pressure. What will happen to the air surrounding this parcel?
A) More dense air rises at the surface. B) Less dense air sinks at the surface. C) Less dense air flows in to replace the rising air. D) Denser air flows in to replace the rising air.
A 10 ohm resistor has 5 A current in it. What is the voltage across the resistor?
A) 5 V B) 10 V C) 15 V D) 20 V E) more than 20 V
On its slow journey through the crust, mafic magma evolves into intermediate magma by differentiation and assimilation of ________.
A. silicic rocks B. gabbro C. basalt D. mantle rocks
Most ultraviolet (UV) radiation reaching Earth from the sun is absorbed by the stratosphere.
Answer the following statement true (T) or false (F)