Answer the following questions. (i) State the major effects of climate change. (ii) What is greenhouse effect? How does it lead to global warming? (iii) Name the major greenhouse gases and their sources. (iv) How does global warming cause spread of diseases? LASSWORK
Answers
1) State the major effects of climate change.?
- (ans) rising maximum temperatures
- rising minimum temperatures.
- rising sea levels.
- higher ocean temperatures.
- an increase in heavy precipitation (heavy rain and hail)
- shrinking glaciers.
- thawing permafrost
2) What is greenhouse effect?
(ans). The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. ... The absorbed energy warms the atmosphere and the surface of the Earth.
3) Name the major greenhouse gases and their sources.?
(ans). Carbon dioxide is a potent greenhouse gas. It is produced by burning of fossil fuels and other organic materials. Excess level of carbon dioxide in the atmosphere results in global warming.
Methane Fossil fuel production; Agriculture; Landfills
Nitrous Oxide Fertilizer application; Fossil fuel and biomass combustion; Industrial processes
Chlorofluorocarbon-12 (CFC-12) Refrigerants
4) How does global warming cause spread of diseases?
(ans) For these reasons, the term “climate change” is now preferred over the term “global warming.” Because of rising temperatures and changing rainfall patterns, climate change is expected to have a substantial effect on the burden of infectious diseases that are transmitted by insect vectors and through contaminated water