ch-5

Question 1

what is biodiversity

Answer 1

the relation between biotic and abiotic components and their interaction

Question 2

what are the reasons for loss in biodiversity

Answer 2

deforestation,natural calamities,climate change

Question 3

what is deforestation

Answer 3

deforestation is the clearing of forest land for other purposes

Question 4

what are the causes of deforestation

Answer 4

cutting trees to feed the growing population,use wood for making furniture,paper,etc,using it as fuel,etc

Question 5

what are the consequences of deforestation

Answer 5

increase in global warming,decrease in O2 levels,droughts,desertification,
infiltration of soil,homelessness of animals,infertility of soil,soil erosion

Question 6

what is desertification

Answer 6

it is when over a period of time the fertile land gets converted into deserts

Question 7

what is soil erosion

Answer 7

soil erosion is when the topsoil of the land gets washed away

Question 8

what are natural calamities

Answer 8

natural disasters and environmental disasters caused by geological and meteorological events.eg:earthquake,
floods,tsunamis

Question 9

what are the effects of natural calamities

Answer 9

these destroy the niche of many species and also take the life of many species

Question 10

what are the effects of climate change on biodiversity

Answer 10

increase in pollution results in global warming which is melting ice caps,
which is results in increase in sea level which causes floods. because of this the species cannot survive and are now depleting

Question 11

how can we conserve our biodiversity

Answer 11

reforestation,protection from forest fires,pests,insects,minimum use of timer/wood as fuel,excessive grazing should be prohibited,conservation of paper,boycotting animal material,strict rules should be
made against poaching animals,protected area like biosphere reserves,national parks,wildlife santuries should be made