Ascientist conditions a dog to salivate in response to the sound of a tone. the researcher continues to present the tone, but gives the dog no food. eventually, the dog stops salivating to the tone. the dog is demonstrating:

The correct answer to this is:”

The dog is demonstrating “extinction response.”

Extinction in psychology is the loss of a previously learnt behavior when the behavior is not reinforced. In this case, the dog was previously taught to salivate in response to the sound of the tone by giving him food. As the researcher continues to give the sound but no food, the salivation has become extinct.

chemical weathering

explanation:

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.