Very soon, our country will be the world’s highest populous country. This alarming rise in population forces us to find new areas for food production. CMFRI suggested the conversion of mangrove forests into aquacultural areas. If so, what will be the environmental and health problems we will be facing?

Very soon, our country will be the world’s highest populous country. This alarming rise in population forces us to find new areas for food production. The conversion of mangrove forests into aquacultural areas impacts the environment and poses health problems. These are: It will cause adversely affect climate change. Coastal fisheries may be affected, resulting in the food supply and employment. There will be an increase in the sea surface temperature. Coral bleaching and sea-level rise.

Give the effects of global warming on plants and animals.

Global Warming is the increase of Earth's average surface temperature due to the effect of greenhouse gases. Carbon dioxide emissions from burning fossil fuels, deforestation, etc are the reasons which trap heat that would otherwise escape from Earth. The effects of global warming on plants and animals are as follows: Many impacts of climate change have already been observed, including glacier retreat, changes in the timing of seasonal events (e.g., earlier flowering of plants) and changes in agricultural productivity. Glaciers have shrunk, ice on rivers and lakes is breaking up earlier, plant and animal ranges have shifted and trees are flowering sooner. Climate change also alters the life cycles of plants and animals. For example, as temperatures get warmer, many plants are starting to grow and bloom earlier in the spring and survive longer into the fall. This is especially true for migratory wildlife and plants including mangroves, seagrass and coral. Some animals are waking from hibernation sooner or migrating at different times, too. The ice caps melting, increasing sea levels and the extinction of plant and animal species.

"Ozone is a natural Sun-block" - Discuss.

The importance of ozone is defined by the roles it plays to protect the earth from harmful ultraviolet rays from the sun. The ozone layer is found to be present in the upper regions of the stratosphere where it protects the earth from the harmful ultraviolet rays of the sun. These radiations is one of the main reason for skin cancer in humans. The ultraviolet rays break the oxygen molecule into free oxygen atoms, these free oxygen atoms combine with the oxygen molecule to form ozone. Due to the depletion of ozone especially by CFCs taking place in all parts of the stratosphere, a large ozone hole has been reported mainly in the stratosphere over Antarctica in the 1980 s where ozone level dropped by 30 percent. This is because, in other parts of the stratosphere, chlorine monoxide radicals combine with the oxides of nitrogen and chlorine-free radicals combine with the methane present in the stratosphere thus ceasing the chain reaction and preventing much ozone depletion. ClO ( g ) + NO 2 g → ClONO 2 g Cl ( g ) + CH 4 g → CH 3 g ˙ + HCl g