Final answer:
Biological microorganisms are living organisms too small to see, like bacteria and viruses. Chemical cleaners and pesticides are used to kill or control unwanted organisms. Glass and metal are physical materials with specific properties.
Step-by-step explanation:
Biological microorganisms, including bacteria, viruses, and fungi, are minute living entities pivotal in diverse ecosystems.
Contrastingly, chemical cleaners and pesticides serve to combat unwanted organisms, with cleaners disinfecting surfaces and pesticides managing pests like insects and weeds.
Meanwhile, glass, a transparent solid derived from heated silica, and metal, recognized for strength and malleability, represent distinct physical materials.
While microorganisms contribute to ecological balance, chemical agents serve human needs in hygiene and pest control. Glass and metal, as materials, embody unique properties, with glass defined by transparency and metal by strength and electrical conductivity, contributing to the versatility of materials in various applications.