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When toxic substances enter lakes, streams, rivers, oceans and other water bodies, they get dissolved or lie suspended in water. This causes pollution of water bodies, which degrade the quality of water so that either becomes health hazard or unfit for use and known as water pollution.
It is defined as deterioration of physical, chemical and biological properties of water brought about mainly by human activities and natural activities which causes harmful effects on human, plants and aquatic life.
Example: Domestics sewage, waste water discharge, industrial effluents, surface runoff water into river and sea.
Q. What is the usual biological function of the connective tissues? How is this function associated to the main features of its cells? The usual function of the connective tiss
HEARIN G - Sound waves struck ear drum, it starts vibrations, these vibrations are carried to MIS → f. ovalis → S. vestibule → Hellicotrema → S. Tympani → f. rotundus → mi
What is the part of the female reproductive system where fecundation occurs? Fecundation generally happens in the Fallopian tubes but it can also take place within the uterus.
The vitamin niacin is a necessary component of NAD. Niacin can be consumed in food or manufactured in the body from tryptophan, an amino acid. How would a person's ability to break
A v i a n influenza (AI) One of only two 'List A' diseases of poultry targeted for emergency disease control measures by OIE, avian influenza is a highly contagious viral d
Evolutionary relationship among various animal groups is depicted in the cladogram given below. P, Q and R respectively shown: a. Vertebrae, hair and four limbs. b. B
Explain the Recommended Dietary Allowance for nicotinic acid? There are various factors and which niacin requirements depend. These are energy Utilization, body size and dietar
Explain the effect of Deficiency of pyridoxine? A deficiency of vitamin B6 alone is uncommon because it usually occurs in association with a deficit in other B-complex vitamin
Quantitative Characters - Population Density Density denotes the average number of individuals of a particular species in a unit area. In other words, it represents the numeri
Subphylum Vertebrata : (41,700 species, the vertebrates) Vertebral column of bone or cartilage, head is well developed, heart is ventrally situated dorsal aorta, two pairs of
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