Все публикации

0:08:21

Smog and its types

0:05:48

Natural Disasters

0:02:31

phosphorus cycle

0:06:55

Effects of acid rain and control measures

0:08:32

Acid rain

0:06:16

ozone layer and its importance

0:09:13

ozone depletion and its effects

0:05:50

green house effect

0:06:37

global warming causes and impacts

0:06:04

hydrosphere, Distribution and Hydrological cycle

0:05:55

lithosphere

0:10:40

concept of threatened species

0:09:20

biodiversity hotspots

0:12:27

biodiversity conservation methods

0:02:31

Importance of Biodiversity

0:06:55

Biofuels

0:09:36

nuclear energy

0:07:52

non renewable energy resources

0:09:20

biodiversity hotspots

0:05:28

Biodiversity and Its Levels

0:12:26

hazardous waste management

0:09:06

factors regulating population growth

0:11:30

population growth

0:07:16

solid waste and its classification