How many deserts in the world have an area of more than 3 million square miles?
3
2
2
2
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
4
2
1
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
2
1
5
3
4
6
1
5
3
4
6
0
1
5
3
4
6
1
5
3
0
4
6
5
4
7
0
6
5
4
7
6
5
4
7
6
5
4
7
6
5
1 Desert
4
7
6
5
4
7
8
6
5
4
7
8
6
5
7
8
6
5
7
8
1 Desert
1 desert
6
7
8
6
7
8
9
6
No
7
8
9
6
No
1 desert
7
8
9
1 Desert
6
No
11
7
8
10
9
6
No
11
7
8
10
13
9
6
No
11
7
8
10
13
9
1 desert
6
No
11
7
8
10
13
9
1 Desert
No
11
7
8
10
13
9
No
11
7
8
10
13
9
1 desert
No
11