Living species are alive and their species still have members, while extinct species no longer are living, and no more of their members exist.
Answer:
A blog cited as a source
Explanation:
Blogs often contain opinions rather than facts
Grasses, shrubs, cacti, and gourd plants.
Answer:
C. top soil has more organic matter.
Explanation:
It's more fertile than subsoil, due to having more organic matter and because fertilizers are usually added to the topsoil only.