Dear Student,
Industries should no be present near agricultural land because -
1) Industries produce a lot of Smoke and Gas which can harm the Crops.
2) Toxic gases might mix with carbon Dioxide in the air which is then used by plants.
3) Harmful chemicals can also leads to Soil pollution by mixing with water.
To prevent pollution of agricultural land and degradation of crops, it is necessary that industries should not be placed near Agricultural Lands.
Regards.