Give one example of solid and one liquid fumigant.

Hint: Fumigation is a process of controlling pests from the crops, which can damage crops. In this process, pesticides are converted into gaseous state and then sprayed to the crop and we get pest free crops.

Complete answer:
In crop production, many farmers lose their crops due to pest attacks. To prevent the loss of crop productivity, many pesticides have been developed and used by farmers to prevent their crops from these harmful pests.

One such method is fumigation. In this method, pesticides are converted into the gaseous state and then used to kill the pests present on the crops. This suffocates or acts as poison to the pests. This method is also helpful pests which destroys the physical appearance of the woody plants, such as termites.

In this process, aera to be fumigated is sealed so that poisonous chemicals do not escape into the environment and affect the other organisms. Then gaseous chemicals are released in the sealed space and left for some definite time. After some time, aera is opened so that fumes get dispersed into the atmosphere and we get a pest free place if the whole process completes successfully.

Naphthalene is an example of the solid fumigant and an example of liquid fumigant involves chloroform and carbon disulphide.

Note: Fumigation is a very hazardous operation for the human, edible part of plants, atmosphere and other living creatures. So, it is very important to test safety parameters after the completion of fumigation. Ventilation of the fumigated aera can be a good safety aspect for the fumigation.