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Qualities of a good baby's feeding equipment include;Light in weightHave smooth edgesFree from cracks
Roles of Chemistry in the society include;Offers career opportunities e.g medicineApplied in manufacture of drugs to fight diseasesApplied in food production to fight hungerApplied in manufacture of cheaper alternative fabrics e.g nylonApplied in manufacture of plastics for packaging etcApplied in manufacture of detergentsApplied in production of fuel for transport and domestic use.
Role of sebum fluid includes;Keeps hair flexibleKeeps epidermis waterproofAnticeptive/kills pathogens
Roles of living organisms in soil formation are;Decompose organic matter to humus (bacteria and fungi)Fix nitrogen in the soil (Rhizobium bacteria)Provide nutrients in the soil when they dieTheir waste matter adds nutrients to the soilTheir burrowing activities increase the breakdown of rock particlesPlant roots breakdown rocks as they grow and expand.Larger animals break rock particles increasing the process of weathering.