Section A
1. Which of the following are compassionate activities that endanger on the ecosystem?
State true or false.
a. unfit planning of development[]
b. Sustainable agricultural methods[]
c. Illegal chase[]
d. Industrial activities[]
e. Deforestation[]
f. Gardening[]
g. Burning of domestic go off[]
h. Coal-fueled power stations[][8m]
2. Eutrophication
Rearrange the sequence of events in eutrophication by writing the numbers at the end of the statement.
a. Bacteria employ up oxygen (BOD high)[]
b. The pond is covered with algae (algal bloom)[]
c. The work of excess manure (organic fertiliser) into the pond []
d. Death of algae[]
e. aquatic organisms die[]
f. Decomposition by aerobic bacteria[][6m]
learning : For question 3 and 4, choose the correct answer in the box given.
3. Green house effect
[pic]
? The glasshouse effect is the phenomenon of an join on in the …………………….. of the Earths atmosphere.
? The greenhouse effect is an primary(prenominal) natural process. Without it, the Earth would be too cold for the natural selection of living organisms.
? Examples of greenhouse gases such as ………………………, chlorofluorocarbons (CFCs) ,……………………., .. .………………. and ozone.
? These greenhouse gases, peculiarly carbon dioxide, trap and absorb …………… in the atmosphere, causing a rise in the temperature of the atmosphere.
? As the concentration of greenhouse gases rises, the greenhouse effect become more pronounced.
? The layer of gas acts as insulator to prevent the heat energy from being transmitted to space.
? As a result, the Earth temperature increases causing global warming.
? The ostracise effects of global warming:
1. …………………………………….........
2. Change in fall patterns
3. Change in species
4. Reduced food sources
5. Health...If you want to demoralise a full essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment