Commercial farming is typically done on a very large scale often by agriculture corporation. In subsidence farming farmers grow a wider range of crops based on the anticipated need of their families or communities. Subsistence farming was most common in Africa.
Answer:
C. increases.
Explanation:
When there are more than one choices or alternatives and we choose one alternative among them, then the loss of the potential gain associated with the other alternatives when one choice is taken is known as opportunity cost.
A production possibility frontier is a curve or graph that shows the various amounts of any two products which can be produced when both the products depends on same finite source.
In the context, a society produces two products namely, beer and donuts. As the production possibility frontier moves up, producing more donuts by the society increases the opportunity cost for producing beer as the society produces both donuts as well as beer.
Hence the correct option is (C).
Answer:
Claim 2: Earthworms can respond to light.
Explanation:
Yes, earthworms do not have eyes. However, sensory organs of animals isn't restricted to the eyes alone. Other sensory organs include, ears for hearing, nose for smelling and so on. In terms of response to light, the eyes as a sense organ comes into play. However, the skin is also a sense organ which has the ability to feel the effect of a phenomenon such as as heat or respond to touch. Because light produces heat, earthworms can respond to light through their skin. With their skin they can measure the intensity of light falling in them and adjust depending on their current body temperature.
Therefore, earthworms can respond to light with their skin.
The reason to blame for adults to obtained a declining
memory during the late middle age, according to Denise Park is because of the
information being obtained by an individual in which are being build up or
overload as the individual go through his or her years.
