Which of these descriptions involves an example of a nonrenewable resource?
a. kaolin material is used to make porcelain.
b. trees grow back after a forest fire.
c. solar energy reaches earth’s surface.
d. winds are produced by temperature differences.

a. kaolin material is used to make porcelain i think Others can be regenerated, and minerals and the like are basically not regenerated.

a. kaolin material is used to make porcelain.

Explanation:

Renewable resources are resources that can be renewed, like the solar energy or the eolic energy that even if you use it and take advantage of it will no run out, trees are also a renewable material since it can be grown back, the only example that is not renewable is kaolin which is a mineral that is used to form porcelain, and as it takes thousands of years to form.

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.