In two separate experiments, a magnet is bought close near to an unmagnetised iron bar. this causes the bar to become magnetised. which magnetic pole is induced at x and y . pole on X/pole on Y
a. N S
b. N S
c. S N
d. S S

please provide explanation. the past paper i'm doing is chemistry 0625/22/o/n/16

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).