Explain how using renewable and recyclable materials can benefit the environment.

The use of renewable and recyclable materials help to protect the environment, it reduces the need for extracting, redefining and processing of raw materials that are known to cause environmental pollution.

Recycling of material save energy and it also reduces the emission of greenhouse gases, as a result, it prevent global warming. It also enhances the economy of the country. Hence, it's better to use 3 R technique in order to prevent environmental pollution.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;