图4是某条河流的剖面图,一般面对河流下游,左手方视为左岸,右手方视为右岸。据此判断该河流位于( )
A:北半球
B:赤道上
C:南半球
D:回归线上
土壤板结不利于植物生长,其直接原因是( )
— Thanks. I had to try on almost a dozen pairs _________ I decided to get them.