Widely spaced isobars on a weather map indicate（）.

If a weather bulletin shows the center of a low pressure system to be 100 miles due east of you，what winds can you expect in the Southern Hemisphere?（）.

In Beaufort Scale，the wind force 7 with speed of 28-33 knots is defined as（）.

Which general weather conditions should you expect to find in a low pressure system（）.

When force of winds reaches 10-11 in Beaufort scale，we usually call such wind（）.

Weather conditions in the middle latitudes generally move（）．

Which of the following is not a frontal term（）.

The area of strong westerly winds occurring between 40°S and 60°S latitude is called the（）.

HIGH WAVES；DENSE STREAKS OF FOAM ALONG THE DIRECTION OF THE WIND；CRESTS OF WAVES BEGIN TO TOPPLE，TUMBLE AND ROLL OVER；SPRAY MAY AFFECT VISIBILITY.This condition is likely to be termed（）.

INTERTROPICAL CONVERGENCE ZONE OVER SOUTH PHILIPPINE PASSING OVER MINDANAO NORTHERN SULU AND PALAWAN.This paragraph is likely to be under the heading of（）.