Linda jingles her keys in front of baby Sam's face and he watches and smiles. Linda continues to bring her keys up and jingle them in front of Sam because he appears to enjoy this game. After a while, though, Sam seems to become bored with the game and no longer focuses on the keys when Linda jingles them. This illustrates the process of

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.