Select the most appropriate option to fill in the blank.

Farmers are urged to ______ to good agricultural practices in the disposal and spreading of agricultural wastes such as slurry.

Adhere

The most appropriate option to fill in the blank is adhere.

The word adhere means to stick to or follow something closely. In this case, the sentence is saying that farmers are urged to adhere to good agricultural practices in the disposal and spreading of agricultural wastes such as slurry. This means that farmers should follow the guidelines that have been set for the disposal and spreading of agricultural wastes, in order to protect the environment and public health.

The other options do not make sense in the context of the sentence.

• Disturb means to make something or someone upset or agitated. It cannot be used in this sentence because it does not convey the same meaning of "stick to or follow something closely".
• Gather means to bring or come together in a group. It cannot be used in this sentence because it does not convey the same meaning of "stick to or follow something closely".
• Worship means to show great respect or reverence for someone or something. It cannot be used in this sentence because it does not convey the same meaning of "stick to or follow something closely".