Question

Which of the following can form sedimentary rocks? Choose one: A. the accumulation of pyroclastic debris B. the cementing together of shell fragments or carbon-rich relicts of plants C. solidification from a melt D. the addition of heat, pressure, and hydrothermal fluids

Answer 1

Shell fragments or carbon-rich relicts of plants can form sedimentary rocks through the process of cementing together.

Step-by-step explanation:

Sedimentary rocks can form in several ways:

1. The most common way sedimentary rocks form is when other rocks weather into small particles and are transported by wind, water, or ice to an area where they are deposited and form layers. These are called clastic sedimentary rocks.
2. Sedimentary rocks can also form through chemical processes. For example, if water containing dissolved salt evaporates, it will leave behind the salt as a solid mineral form called a precipitate.
3. Organic sedimentary rocks form from the accumulation of organic debris, such as leaves and other plant or animal material.

Based on these processes, we can identify that the cementing together of shell fragments or carbon-rich relicts of plants can form sedimentary rocks. Therefore, the correct answer is B.