The number of people per square mile is the population density
Explanation:
long term and lasting progress
Characteristics of the photic zone in the freshwater biome are the warmer water, light, rich in freshwater organisms, shallow.
The photic zone is the first zone from the top of the freshwater body of water. It is the shallowest part of the body of water, and it is further divided into the littoral zone and limnetic zone. This zone is the closest to the shore. The sunlight manages to penetrate in it, so it is a zone where the majority of the producers are able to survive and thrive because they can perform the process of photosynthesis. Since this zone enables the producers to thrive, and the producers are the basis of any ecosystem, it enables the further existence, high diversification, and thriving of all the other living organisms in the freshwater biome. The photic zone is also characterized with warmer water because it is on the top, it is heated by sunlight, so that provides nice conditions for the living organisms to be the most abundant in this zone.
NON CONVENTIONAL =
Energy generated by using wind, tides, solar geothermal heat and biomass including farm and animal waste as well as human excreta is known as non-conventional energy. All these sources are renewable or inexhaustible and do not cause environment pollution. More over they do not require heavy expenditure.
CONVENTIONAL=
Conventional energy means the energy source which is obtained from fixed reserves in nature like oil, gas and coal. In other words conventional energy is also termed as non-renewable energy sources, or fossil fuels.
A bay is a water-body bounded by land on all three sides, and a peninsula is a piece of land sticking off a bigger piece of land and surrounded by water on all three sides.