James,
I need a little help in understanding this,
As stated by you to what ankur has written;
Let me see if I can explain again.
The thing with A, is that it's a couple of stages down from the pesticides that the effect occurs. BUT the CAUSE is still persticides:
Pesticides applied --> Weeds die --> Insects that eat weeds die ---> Partridges have nothing to eat so leave/die
So pesticides cause the lowering of partridge numbers
A is the answer
my doubt comes here. We readily assume
...
I need a little help in understanding this,
As stated by you to what ankur has written;
Let me see if I can explain again.
The thing with A, is that it's a couple of stages down from the pesticides that the effect occurs. BUT the CAUSE is still persticides:
Pesticides applied --> Weeds die --> Insects that eat weeds die ---> Partridges have nothing to eat so leave/die
So pesticides cause the lowering of partridge numbers
A is the answer
my doubt comes here. We readily assume
...
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