. Fill in the gaps in these security tips with words from the box. digital certificate malware virus scanner spyware firewall antivirus
(I)can be avoided by following some basic rules. Internet users who like cybershopping should get a (2)an electronic identity card. To prevent crackers from breaking into your internal network and obtaining your data, install a (3) It will protect you from (4) If you have been hit by a (5) .» don t panic! Download a clean-up utility and always remember to use an (6) program, for example, a virus (7)
2. He hasn't given them any money. Has he given them any money?
3. You haven't brought anything for us. Have you brought anything for us?
4. I haven't taken any English books from you. Have I taken any English books from you?
5. She wasn't reading anything. Was she reading anything?
6. He hasn't written a letter to anybody. Has he written a letter to anybody?
7. Nobody by the name of Petrov lives on the third floor. Does anybody by the name of Petrov live on the third floor?
8. They don't have any English books. Do they have any English books?
9. There aren't any tall trees in front of their house. Are there any tall trees in front of their house?
10. Peter doesn't have anything in his box. Does Peter have anything in his box?
11. There aren't any parks in his town. Are there any parks in his town?
12. There aren't any good bookshops in our district. Are there any good bookshops in our district?
, recycling - convert (waste) into reusable material.
, pollution - the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.
, habitat - the natural home or environment of an animal, plant, or other organism
, environment - the surroundings or conditions in which a person, animal, or plant lives or operates.
, nature - the phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations.
, waste - an act or instance of using or expending something carelessly, extravagantly, or to no purpose.
, soil - he upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles.
deforestation - cutting wood in large quantities
radiation - the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
toxic - poisonous substances
pesticides - a substance used for destroying insects or other organisms harmful to cultivated plants or to animals
chemicals- a compound or substance that has been purified or prepared, especially artificially.
damage - physical harm caused to something in such a way as to impair its value, usefulness, or normal function.