Can somebody help me with this plz?!

1.About how many tornadoes strike the U.S. each year?
(a) 800
(b) 1300
(c) 1000
(d) 2000


Question 2
A dryline is the boundary between two air masses of different moisture content and separates warm, moist air from hot, dry air.
(a) True
(b) False


Question 3
The most likely thunderstorm stage for large hail and damaging winds is the...
(a) Mature stage
(b) Cumulus stage
(c) Dissipating stage
(d) Hail stage


Question 4
A SEVERE Thunderstorm is one that produces:
(a) tornadoes
(b) Wind gusts to 50 mph (80 km/h) and marble-sized hail
(c) Flash floods
(d) Intense lightning


Question 5
Thunderstorms are most common in the:
(a) Southwest U.S.
(b) Northeast U.S.
(c) Northwest U.S.
(d) Southeast U.S.


Question 6
The #2 killer among thunderstorm hazards is...
(a) Lightning
(b) Tornadoes
(c) Large hail
(d) Flash flooding


Question 7
Where is terrain most likely to be a source of lift for thunderstorm development?
(a) Corn belt
(b) Great Plains
(c) Coastal plain
(d) Rocky Mountains


Question 8
How long should you stay in shelter after the last thunder is heard?
(a) 15 minutes
(b) 30 minutes
(c) 20 minutes
(d) 25 minutes


Question 9
Which state is NOT in Tornado Alley?
(a) Nebraska
(b) Texas
(c) Florida
(d) Kansas


Question 10
Where is the safest place to be in a tornado?
(a) Hallway
(b) Basement
(c) Interior closet or bathroom
(d) Ditch or ravine