That's not spanish... but, if you're rounding to the nearest ten, the target is the middle number, since that's in the tens place, the numbers left of the target stay the same
Answer En general hay menos águilas que buitres
1- sabe
2-conoce
3-conozco
4-conoce
5-sabe
6-se
7-saben
8-sabes
9-conoce
10-sabe
11-sabe
12-sabe
13-conozco
14-conoce, sabe
15-saben
16-se
17-conoce
18-sabe
19-conoce
Hope this helps
The answer is: A recycling and cleaning effort is needed.