Which of the following statements is correct?

urls identify the author of web content.
sir timothy berners-lee invented the internet.
urls identify the location of web content

Hundreds of a bank's customers have called the customer service call center to complain that they are receiving text messages on their phone telling them to access a website and enter personal information to resolve an issue with their account. what action should the bank take?

In march 2012, the state of california started requiring that all packaging for food and drink with the additive 4-methylimidazole (4-mi) be clearly labeled with a cancer warning. because of this, both pepsi and coke changed their formula to eliminate 4-mi as an ingredient. if pepsi and coke did not change their formula, holding all else constant, what would have happened to the demand for these goods, assuming pepsi and coke were in a competitive market? a. the demand curve for both pepsi and coke would have shifted to the right, causing the price of both products to decrease and the profits for the companies to fall. b. the demand curve for pepsi and coke would have remained unchanged, but the price of both products would have decreased and the profits for the companies would have fallen. c. the demand curve for pepsi and coke would have decreased, but the prices and profits would not have changed. d. the demand curve for only one of them would change because pepsi and coke are substitutes. e. the demand curve for pepsi and coke would have shifted to the left, causing the price of both products to decrease and the profits for both companies to fall.

Two firms, a and b, each currently emit 100 tons of chemicals into the air. the government has decided to reduce the pollution and from now on will require a pollution permit for each ton of pollution emitted into the air. the government gives each firm 40 pollution permits, which it can either use or sell to the other firm. it costs firm a $200 for each ton of pollution that it eliminates before it is emitted into the air, and it costs firm b $100 for each ton of pollution that it eliminates before it is emitted into the air. after the two firms buy or sell pollution permits from each other, we would expect that firm a will emit a. 100 fewer tons of pollution into the air, and firm b will emit 20 fewer tons of pollution into the air. b. 20 more tons of pollution into the air, and firm b will emit 100 fewer tons of pollution into the air. c. 50 fewer tons of pollution into the air, and firm b will emit 50 fewer tons of pollution into the air. d. 20 fewer tons of pollution into the air, and firm b will emit 100 fewer tons of pollution into the air.