What process takes place during the youthful stage of a river?
A. Valley widening
B. River rejuvenating
C. Valley deepening
D. Meandering
Answer: Option C
A. Valley widening
B. River rejuvenating
C. Valley deepening
D. Meandering
Answer: Option C
What is the difference between a geyser and a hot spring?
A. Water is ejected explosively in a geyser
B. Water from the geyser may be cold
C. Geysers are found on volcanic mountains
D. Geysers are more common in cold countries
The intensity of earthquakes is measured on ________
A. Beaufort scale
B. Richter scale
C. Secant scale
D. Mercalli scale
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