Evidence that the south american and african continents were once joined includes evidence from their coastlines such as a. shared anthropological evidence b. identical mineral properties c. symmetrical earthquake patterns d. matching fossil distributions

Evidence that the South American and African continents were once joined includes evidence from their coastlines such as D. matching fossil distributions

Explanation:

As well as linking Africa to South America, the distribution of fossils suggests that other continents were once contiguous with each other. For example the fern-like plant Glossopteris, which flourished almost 300 million years ago, is found in Antarctica, Australia and India as well as Africa and South America. This indicates that Glossopteris lived at a time when all of these continents were joined in a single super-continent, which geologists refer to as Pangaea.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !