Name any two pesticides/insecticides you have heard about.

Name any two metalloids

Name some garden pesticides.

Name any two typical elements.

Name any two typical elements.

Name any two bridge elements.

What threats to nature do chemical fertilizers, pesticides, insecticides and herbicides pose?

Ajay said, "Not all insects are harmful and we should not kill them by using pesticides and insecticides". Do you support him? Give reasons.

Name any two man-made silicates.