chemicals located in the WC's of planes and then unloaded at airports through localised disposal and filtration
Drops from a hole onto tracks which then solidifys into a rock that you see all over the tracks!
it depends if they had traning and how old they are
The collective nouns for aeroplanes are a flight of aeroplanes or a squadron of aeroplanes.
Quantas aeroplanes are 1500 years old kind of when jesus was alive
Oil and sewage would affect us especially if it was disposed of in a lake. From there, it could go into bottled water, and poison fish and various other animals. If it was disposed of in a landfill. the buildup of methan could produce a gas problem, and would also affect a vast number of animals. However, if it was dumped in a lake, it would be more serious.
Collective nouns for aeroplanes are a flight of aeroplanes or a squadron of aeroplanes..
Faeces is filtered from the sewage water and the water is cleaned and passed back through the domestic water cycle. The solid waste is disposed of in a form of land fill
aeroplanes can reverse
The collective nouns are a stack of aeroplanes, a fleet of aeroplanes, or a squadron of aeroplanes.
Sewage is liquid waste from households and retail areas that contains sanitary waste (Feces and urine), soaps, food scraps, water, cooking wastes etc.It is gathered and piped to sewage treatment plants. Depending on the complexity of the plant the treatment consists of:* Primary treatment: "De-lumping" the sewage and allowing the fluids to sit in lagoons for a period of time before discharge. Removed solids are disposed of to land.* Secondary Treatment: "Delumping" the sewage. Allowing the sewage to be mixed with bacteria in aeration basins which remove the dissolved organics. Removing the bacteria and discharging the treated water. Removed solids are disposed of to the land or anaerobically digested to generate methane. * Tertiary Treatment: The same as Secondary Treatment but the effluent is filtered and disinfected before discharge Storm water can also be considered as sewage. In many cases it has as many contaminants as sanitary sewage. I is generally simply settled prior to discharge to allow solids to settle out and oils to float to the top for removal
Aeroplanes are generally made of Aluminum.
No one 'writes' aeroplanes they are manufactured by many thousands of people.