Answer:
By monitoring changes in the population of a specific indicator species, scientists may draw conclusions about changes in a specific pollutant's levels. In addition, this method of pollution measurement demonstrates the impact of pollution on vulnerable species.
Explanation:
Answer:
bedrock
Explanation:
In the soil is characterized by several layers, which are: humus is more abundant in the upper layer of the soil, known as the superficial layer. The layer below is called the subsoil, which is mainly composed of clay and sand. Below it is a frayed rock layer. And deep down is a solid rock layer called the bedrock.
Bedrock is the type of rock on which the soil rests. Through erosion and a weathering process, the parent rock enables the inorganic sector of the land to develop.
Answer:
always use the one that holds the least amount needed
Explanation:
Sensational and perception
