Question

ii) Complete the following chart:
Oil spill
Microbes
Land filling

Answer 1

Oil spills

Explanation:

• Oil spill is the release of oils in the form of liquid petroleum into the environment specifically in marine ecosystem
• They may occur because of human activities or by any accident involving leakage in tankers,pipelines or refineries
• Oil spills especially damage the marine plants and animals with long term effects
• Microbes helps in mitigating the oil spills;marine dwelling bacteria and fungi use hydrocarbons as fuel and emit C02
• Bioremediation is the use of microorganisms for breakdown or removal of oil from the marine environment
• Alcanivorax borkumensis is a rod-shaped bacteria that relies on oil to provide it with energy,it is rare in unpolluted seas and quickly comes to dominate the marine microbial ecosystem after an oil spill
• Land filling is a method in which trash isolated from the surroundings(groundwater,rain,air) deposited deep down into the soil on the land
• This is the most common method of waste disposal;works on two processes confine and compact
• Waste material is confined to a small area and in a compact form so that it does not occupy a large amount of area