Answer the following questions. what type of rocks generally comprise a ridge-and-valley terrain? why do the ridges and valleys that form in such an area not generally correspond to anticlines and synclines? what beneficial purpose do you think mountain building provides for human-kind?

Answer and Explanation:

Ridges and Valley topography came into shape because of the alternate presence of soft rocks and hard rocks. In fact, ridges and valley terrain are a great source of sediments resulting from human activities and by natural phenomena.

Anticlines and synclines are each half of the fold moves away and towards the crest respectively. Since, the processes are entirely different and are not related, this explains that ridges and valleys generally do not correspond to anticline and synclines.

The mountain building serves many purposes for human beings. They provide waterfalls, rainfalls, regulates climate changes, serves as a water source, helps in keeping the fertility of soil in check and maintains it.