Select the most appropriate sentence with respect to grammar and usage.
1
Around 64 per cent of land used for agriculture so food crops is at risk of pesticide pollution.
2
An erratic monsoon season can damage the economy and affect agricultural practices.
3
The intensity of cyclones and hurricanes might increased in the next century due to global warming.
4
Robotics develop machines that can substitute for humans and replicate human actions.
5
None of these