Describe the relationship between pH number and base strength

when the ph of s solution is less than 7,the solution is acidic.when the ph is more than 7,the solution is basic.The ph of solution depends on the strength of the acid or base in the solution. Measurements of the ph of dilute solutions are therefore good indicators of the relative strengths of acid and bases

i think that c)gold was found there

but i am not sure

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