Question

Herbicides:

1.are used to kill insects
2.can increase crop yields by killing weeds
3.supply plants with nutrients and minerals
4.are only used with hybrid plants

Answer 1

2.Can increase crop yields by killing weeds.

Answer 2

The correct answer is number 2: herbicides can increase crop yields by killing weeds.

Step-by-step explanation:

Herbicides are chemiclas used to avoid the spreding of undesired plants (weeds) on crops. These weeds would be prejudicial to the harvest, therefore, herbicide use can increase crop yields.