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soil is upper crust of earth which support land plants and animals. it is defined as addition of substances to the soil which adversely affect
when toxic substances enter lakes streams rivers oceans and other water bodies they get dissolved or lie suspended in water. this causes pollution of
it is defined as the presence of chemicals and particulate in the atmosphere in quantities and pollution that are harmful to human health and
the earths environment has been composed in a way which sustains life on this planet. through on process the different constituents of the atmosphere
atmosphere is a multilayer blanket of various gases such as n2 78.80 o2 20.95 ar0.93 co2 0.03 water vapor and some other gases. this envelope extends
the biosphere is composed of all living organism. this sphere includes all the microorganism plants and animals of earth. in fact biosphere involves
the water on earth surface constitutes hydrosphere. about 75 of earth surface is covered with water and 97 of that water is present in oceans which
the lithosphere contains all of the hard solid land of the earth crust and the semisolid land underneath the crust. the surface of the lithosphere is
segments of environment the environment is not a simple distribution of gases but is highly complex and structured. it comprises of four
basics of environmentwe live in two world one is natural world of animals plants air water and soil that was present since the evolution of earth.
methods of cognitive neuroscience given the vast complexity of human perceptual and cognitive processes on one hand and that of the
there are specific sensitivecritical periods in development during which acquisition of certain skills is substantially easier than at other
one way that the cortex has been parcellated is based on fine-grained anatomical differences in the composition of the cortical layers their
the cerebrum is clearly the most interesting part of the brain from the point of view of cognitive neuroscience. the cerebrum consists of highly
the brain is only a part of a larger nervous system that extends to each part of the body. the nervous system can be divided into central nervous
brain anatomical coordinate systems are the first potential point of confusion as there are different ones due to the fact that research is
in order to be able to study the neural basis of perceptual and cognitive functions it is necessary to have some knowledge of brain anatomy i.e. what
limnology it is the study of organisms present in rivers or fresh water lakes. limnology is also called as freshwater science. this is the study of
radiobiology this is the study of effects of radiations on living organisms. radiobiology is a branch of science which concerned with the action of
apiculture this is the study of bee-keeping for obtaining wax and honey. beekeeping is also known as apiculture it is taken from latin apis bee.
biostatics this is the application of mathematics in living organisms. biostatistics is a contraction of biology or statistics sometimes it is
astrobiology this is the branch of scientific enquiry dealing with the possibility of life in the outer space. astrobiology is a type of study of the
forestry it concerned with protection or development of forest and to explore the outcome or economic potential of forest. forestry is the art or
biogeography this is the distribution of organisms in various parts of the earth. over periods of ecological changes biogeography contains the study
economic biology this is the study of useful plants and animals or their products. economic biology is referred to as economics and human biology.