Poisoning the land - pytania i odpowiedzi

 0    12 Datenblatt    mentor2
mp3 downloaden Drucken spielen überprüfen
 
Frage Antworten
How can soil be renewed?
Lernen beginnen
trzeba to skrócić
What are the 3 biggest sources of pollution in agriculture?
Lernen beginnen
The 3 biggest sources of pollution are pesticides, fertilizers and clearing vast areas for farming.
How is soil destroyed mechanically?
Lernen beginnen
Soil can be destroyed mechanically by bulldozers which dig up soil and vegetation.
What heavy metals contaminate soil in mining areas?
Lernen beginnen
In mining areas soil is contaminated by three heavy metals such as lead, zinc and manganese.
How can landfills pollute soil and be dangerous for people?
Lernen beginnen
Landfills can pollute soil and be dangerous for people because not all poisonous wastes are buried. Some of poisonous wastes can leak from their containers into the soil.
How can we degrade oil?
Lernen beginnen
Thanks to new kinds of bacteria (if scientists develop them).
How can beaches be polluted?
Lernen beginnen
Beaches can be polluted by domestic and industrial wastes such as empty milk cartons, bottles or plastic bags, by wastes from hospital such as syringes and blood samples (and by oil split).
What are dioxin?
Lernen beginnen
Dioxins are produced when plastic and other products made from chlorine are burnt.
What is lead dangerous for humans?
Lernen beginnen
Lead can cause damage to the brain and nervous system.
What chemical compounds are formed in the atmosphere?
Lernen beginnen
In the atmosphere are formed two chemical compounds. It is sulphuric acid and nitric acid. Sulphuric acid and nitric acid are formed in the atmosphere.
When can radioactive substances pose a threat to humans?
Lernen beginnen
Radioactive substances pose a threat to humans when they are in high level.
How can waste be reduced?
Lernen beginnen
Wastes can be reduced if we recycle them and learn to depend on less hazardous forms of energy.

Sie müssen eingeloggt sein, um einen Kommentar zu schreiben.