Suppose two unsaturated air masses mix horizontally. The resulting mixture cannot possibly be saturated.
A. True
B. False
A. True
B. False
A. Shorter
B. Longer
C. No
D. More
A. A control measure to prevent water pollution
B. A process by which roots of plants are spread on the ground
C. A control measure to prevent soil pollution
D. None of these
A. A and B only
B. C and D only
C. A and C only
D. B and C only
E. B and D only
A. 110 mm
B. 110 cm
C. 85 cm
D. 110 m
A. an impermeable layer
B. an anticline
C. a fault
D. syncline
A. 51%
B. 61%
C. 71%
D. 91%