Most of the Yellowstone National Park is above 2,275 meters. Yellowstone's weather is very
A sunny warm day may become very stormy with wind, rain and sometimes snow. Without enough clothing and equipment, and easy day-hike or boat-trip can turn into a battle against nature.Seasonal
The campers or hikers are advised to______.
A.fight against stormy weather
B.stay in a camp at night-time
C.get familiar with the area around
D.prepare for changeable weather