How many countries are on the continent of North America?
23
76
ten
76
ten
76
17
ten
17
76
ten
10
14
17
76
10
14
ten
17
10
14
66
76
50
17
ten
10
11
14
50
61
17
66
76
69
62
58
ten
19
10
11
14
50
17
49
61
66
76
109
69
19
10
62
11
58
14
ten
50
15
17
67
49
117
20
13
19
10
61
11
14
66
96
76
109
50
15
69
78
17
62
58
49
ten
20
48
18
13
19
ten countries
10
11
14
50
15
61
17
67
89
49
66
76
117
69
20
62
48
18
58
29
ten
13
19
10
11
98
14
96
109
50
15
17
49
20
61
48
18
29
66
76
13
69
19
78
9
10
62
107
11
58
14
ten
50
15
108
54
17
49
20
48
18
29
13
19
9
10
61
27
11
67
98
89
+1
14
174
66
76
50
117
15
54
17
49
ten
5
2
20
28
48
18
31
1
29
96
13
109
69
19
78
9
10
27
62
107
11
71
14
50
15
54
17
49