Defined as variation of life on Earth, biodiversity is the number and relative abundance of different species
Biodiversity is determined as the number of different species and the variation of their genetic material. If the number of species is high, then the biodiversity is also high. Area with high/rich biodiversity should be protected since it was home to many species. Using it for economical reason could lead to extinction of many creature.
Answer:
Fossils closer to the surface are younger
Explanation:
Answer: When you mix sand and water there are no reactions. The sand sits at the bottom of the water because the sand is heavier than the water is.
Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic. Typical acid rain has a pH value of 4.0.
