Aphysical property of halite (table salts) it its

a) acidity

b) basicity

c) high melting point

d) chemical composition

C

Because the rest of them are about the chemical composition, but C is about the physical property.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.