Which of the following ions can pass through the open channel of the acetylcholine receptor?
A) K+
B) Na+
C) both a and b
D) neither a nor b
C
Environmental & Atmospheric Sciences
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Which of the following rocks would physically weather most rapidly?
A. rock A is in a high temperature, moist climate B. rock B is in a high temperature, dry climate C. rock C is in a low temperature, moist climate D. rock D is in a low temperature, dry climate
Environmental & Atmospheric Sciences
Horizontal transport by the wind is called
a. advection b. radiation c. conduction d. latent heat. e. reflection
Environmental & Atmospheric Sciences
In Sub-Saharan Africa, petroleum accounts for 80% or more of the export earnings of Chad, Republic of Congo, Gabon, and:
A) South Africa B) Nigeria C) Ethiopia D) Mozambique
Environmental & Atmospheric Sciences
The smallest particle exhibiting the characteristics of an element is a/an
A. molecule. B. ion. C. atom. D. isotope.
Environmental & Atmospheric Sciences