Answer:
This type of mechanical weathering breaks apart rocks and other materials using the expansion of freezing water. Water seeps into small cracks in a rock where it freezes, expands and causes the crack to widen.
Explanation:
Hopes this helps.
The right option is; c) the market is dominated by two or more sellers
A pure competitive market is a market in which there are a large number of sellers and buyers that are dealing in similar products. This type of market has so many competitors that sells the same product or service with the same price and quality. The price of products in a pure competitive market is determined by what consumers are ready to pay.
Answer:
Secondary reinforcers
Explanation:
A secondary reinforcer is a type of stimulus or situation that functions as a reinforcer because it has been paired with another stimulus that also functions as a reinforcer. In this case, the reinforcer is the good grade. In turn, the secondary reinforcers are the praise and the money, both of which seem to be effective with Curtis.
