Pollution - environmental pollution, Biology

Assignment Help:

Pollution - Environmental Pollution

Pollution refers to any undesirable change in the physical, chemical or biological characteristics of our environment, i.e. air, water and oil that may or will adversely affect humans or other species and life support systems of our biosphere directly or indirectly. A substance whose introduction into a resource damages the latter's usefulness is called a pollutant. Pollutants are grouped into two broad categories:

  1. Biodegradable pollutants and
  2. Non-biodegradable pollutants.

The non-biodegradable pollutants such as heavy metals, pesticides, move through the food chain and may get magnified to dangerous levels in higher trophic level organisms. Some of these combine with other compounds and produce toxic substances. However, biodegradable materials such as human and animal wastes, agro-based residues and fertilisers can also pose a threat if their quantities or inputs exceed the Assimilative capacity of the environment.


Related Discussions:- Pollution - environmental pollution

What is membrane, Q. What is membrane? Membrane is any delicate sheet t...

Q. What is membrane? Membrane is any delicate sheet that separates one region from another blocking or permitting completely or selectively the passage of substances. The skin,

What are the typical fauna of the temperate forests, What are the typical v...

What are the typical vegetation and the typical fauna of the temperate forests? In the temperate forest deciduous trees predominate. Mammals are originated in great number, as

Gene pool, Natural selection can therefore mean differential reproduction a...

Natural selection can therefore mean differential reproduction among members of the sarne gene pool. We earlier said that selection would promote those alleles that give rise to ph

Long-term responses - behaviour of plants, Long-term responses - Behaviour ...

Long-term responses - Behaviour of Plants Plants alter their course of development to suit the prevailing environmental conditions. For example, leaf maturation and fall, onse

How does the male gamete penetrate the egg cell, How does the male gamete p...

How does the male gamete penetrate the egg cell? How does the female gamete protect itself from the entrance of more gametes after the entrance of the first sperm cell? The spe

Calliphora vicina larvae grow at different rates, Calliphora vicinia l...

Calliphora vicinia larvae grow at different rates on different body tissues The problem which was approached in this experiment is to measure the growth rate of the

Define the role of fluorine in human body, Define the role of Fluorine in H...

Define the role of Fluorine in Human Body? Fluorine is potentially a toxic element. Its essentiality for humans is not established although the role of fluoride in providing pr

Phases of respiration in animals, Phases of Respiration in Animals The...

Phases of Respiration in Animals The procedures of respiration in these animals have the following phases. i) External respiration is usually described as breathing. It inv

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd