Probably the most serious environmental factor limiting crop productivity is which of the following?
A) use of GM plants
B) evolution of pests resistant to pesticides
C) increasing salinity of soils
D) invasion of weeds from tropical areas
E) None of the above is correct.
Correct Answer:
Verified
Q17: Which of the following is correct about
Q18: Why did early farmers likely select grain
Q19: Artificial selection has led to the development
Q20: Which of the following is an issue
Q21: Which of the following associations is not
Q23: What is Panicum sonorum?
A)an improved variety of
Q24: Which of the following farming practices encouraged
Q25: Cyphomandra betacea is a solanaceous plant known
Q26: India,has lost 75% of the 30,000 land
Q27: Fifty percent of cotton grown in the
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