Answer:
b
Explanation:
Nutrient pollution can create dead zones areas in water with little or no oxygen where aquatic life cannot survive. Also known as hypoxia, these areas are caused by algal blooms consuming oxygen as they die and decompose.
Answer:
A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.
Explanation:
Hope this helps :)
Answer:
1st factor is:Cornified layers:loss of water in the cell in the layer of dying cells
2nd factor is infusion of keratin its a dense protein that hardens the skin cell to aid in producing a barrier against the outside world
Answer:
Scientists use cladograms to propose and ask questions about the evolutionary relationships between different species. By giving weigh to derived characters and recognizing ancestral characteristics, scientists can compare different phylogenies of the same groups of organisms.
Explanation:
Your answer would be D. Carbon monoxide. Everything else pollutes the water
