To hum example sentences

Why do ants want these alien creatures to live in their nests? For several reasons: some give off smell pleasant to the ants' senses others give sweet juices; and some are just pets or playthings like cats and dogs to human beings.We need some scientists to develop theories and others to find solutions to human problems.But these chemicals are severe nerve toxins and hence more harmful to humans.These events are called 'disasters' because they cannot be prevented, usually come without any warning, and result in immense damage to human lives and property.We have discussed only those pollutants, which are due to human activities, and can be controlled.Pollutants can be solid, liquid or gaseous substances present in greater concentration than in natural abundance and are produced due to human activities or due to natural happenings.You have learnt about humus in Chapter In which layer of the soil would you find humus? What is its importance to the soil? The micro-organisms which convert the dead plants and animals to humus are known as decomposers.The chapter ends with broadening the official concept of poverty into human poverty.Sometimes, this balance is disturbed due to human activities like deforestation, over-grazing, construction and mining etc.Some of the important economic commodities that biodiversity supplies to humankind are: food crops, livestock, forestry, fish, medicinal resources, etc.All these metals are dangerous to humans because our body cannot excrete them.Many scholars advocate that we must broaden the concept into human poverty.Imagine that if Srinagar, Nainital and other tourists places did not have a lake would they have been as attractive as they are today? Have you ever tried to know the importance of lakes in making a place attractive to tourists? Apart from attraction for tourists lakes are also useful to human beings in many ways.They enter into human body and undergo various biochemical reactions and finally damage DNA and cause cancer.Firstly, it lists modes of humiliation that are both physically horrific and morally reprehensible and seeks to punish those who force a member of a Scheduled Caste or a Scheduled Tribe to drink or eat any inedible or obnoxious substance; … forcibly removes clothes from the person of a member of a Scheduled Caste or a Scheduled Tribe or parades him or her naked or with painted face or body or commits any similar act which is derogatory to human dignity… Secondly, it lists actions that dispossess Dalits and Adivasis of their meagre resources or which force them into performing slave labour.