Answer: Any concentration of a toxin, such as pesticides, in the tissues of resistant creatures at successively higher levels in a food chain is known as biomagnification, also called as bioamplification or biological magnification. When a substance can’t be broken down by natural processes, it’s called persistence.
Food chain energetics is a concept in which the concentration of a material increases as it progresses up the food chain. Internal decomposition or excretion of the drug is slow or non-existent, owing to water insolubility. The accumulation of poisons in a food chain is known as biomagnification. The concentration of DDT is measured in parts per million.
The accumulation of poisons in a food chain is known as biomagnification. The concentration of DDT is measured in parts per million. Bioaccumulation are compounds that accumulate in living creatures after ingestion of contaminated air, water, or food because they are digested or removed slowly.
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west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be 
Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points 
and 
carrying currents of 
and 
in the same direction are separated by a distance of 
. Estimate the force on a 
section of wire A.
wire carrying a current of 
is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 
. What is the magnetic force on the wire?
and making an angle of 
with the direction of a uniform magnetic field of 
. What is the magnitude of the field 
at a point 
from the wire?
-turns carrying current 
.
is at distance 
from the wire. Find the force acting on the electron if its velocity is directed towards the wire.