Sewage treatment is also known as wastewater treatment. It is a process whereby contaminant is removed from wastewater. Thus, chemical, biological and physical process are commonly used to remove contaminants from wastewater and the by-products of wastewater treatment is usually inform of solid waste known as sewage sludge.
Answer: 2. the production of new body cells to replace old cells
Mitosis is a form of cell division that results in two daughter cells that are identical (genetically) to each other and to its original cell. It plays a vital role in the life cycle of most living things.
In single-celled (unicellular) organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell.
In multicellular organisms, mitosis produces new cells to replace old cells and promote growth and repair.
The production of new body cells to replace old cells;
The production of additional embryonic cells following fertilization.
The set of information encoded in genetic material RNA or DNA sequence and translated into proteins is known as genetic code. Thus, the genome of an organism is inscribed in DNA or viruses RNA and the portion of the genome that code for a protein is commonly refers to as gene.
The given blank can be filled with the sewers cannot handle the volume of waste from street runoff and sewage.
The combined sewage system is very popular in many big cities. The sewage system handles all the sewage combining from the houses. During the rainy season, the water flows in the sewer, causing the overflow of the sewers and spread of water in the nearby regions.
Warm water holds less oxygen
Thermal pollution may be defined as the cahnge in the ambient water temperature that can degrade the water quality. Main cause of thermal pollution is the use of water as coolant in industries.
Thermal pollution is harmful for aquatic life. Fish and other aquatic organismsm dies because thermal pollution increases the temperature of water. This warm water has less ability to hold oxygen and fishes die due to the lack of oxygen in water.
Thus, the correct answer is option 4.
The answer is A) HEAT GENERATED AT THE EARTH'S SURFACE DUE TO HUMAN PROCESSES