The correct answer is the first option.
The sentence that presents the correct subject-verb agreement is the first one since in it we are talking about "heavy rains" OR "fast-melting snow". In other words, the subject is coordinated by the conjunction "OR" which makes the subject singular. The verb "causes" is conjugated in the third person singular.
Slavery
"was laughed at and made out fun on account of his look and the sound of his voice.
Answer:
1) The desire to help others is a trait of a good person.
2) A good individual obey the rules and upholds the law.
3) Lying does not form part of a decent person's mannerism.
4) Politeness is a sign of virtue.
5) Good people are courteous.
6) Positivity emanates from a decent person.
7) A good person fulfills their obligations/responsibilities.
8) A good individual does not commit theft.
9) Good people do not get into conflicts.
10) Good people never hold grudges against anyone.