SOME METHODS TO PREVENT SOIL EROSION ARE PLOWING PARALLEL WITH SLO...

50. - KIỂM TRA HỌC KÌ II 2010 2011 KHỐI 11 MÔN ANH VĂN DOC
KIỂM TRA HỌC KÌ II 2010 2011 KHỐI 11 MÔN ANH VĂN DOC

50. Some methods to prevent soil erosion are plowing parallel with slopes of hills, to plant trees on unproductive land, and

A

B

C

D

rotating crops.

This is the end of the test. Good luck!!!