Solution:
Biodiversity hotspot is a biogeochemical region which act as a prominent reservoir of diverse organism and are threatened for destruction.
There are 34 biodiversity hotspots in the entire world that protects the diversity of flora and fauna that are still alive.
Two hotspots found in India are-
Western ghats present along the western edge of peninsular India and consists of about 77% of amphibians that are found nowhere else in the world. The hotspots are also famous for the 62% reptiles that are found only here in India.
The Himalayas comprises Bhutan, northeast India, southern, central and eastern Nepal. They consists of almost 163 endangered species.
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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.