Cause and Effect Connectors

To talk about cause and effect, we need to use certain connectors so that we get the meaning and the feel right.

In one occasion, we can say:
1. Indonesia is a perfect tourist destination because It is beautiful and unique.

In another occasion, we might want to say:
2. Indonesia is a perfect tourist destination because of its beauty and uniqueness.

In a different occasion, we can also say:
3. Indonesia is beautiful and unique. Therefore, it is a perfect tourist destination.

Explanation:
1. We use because to join "Indonesia is a perfect tourist destination." (A main clause) with "It is beautiful and unique."(a subordinate clause). A subordinate clause must consist at least a subordinate connector + subject + verb. 

The following connectors are used in the same way:
Because: I am here because I care for you.
Since: Janet was punished since she was late for class.
For: Lucy was absent from school for she was sick.
As
Inasmuch as
In that
Seeing that

2. We use because of to join "Indonesia is a perfect tourist destination." (a main clause) with "its beauty and uniqueness." (A noun phrase). A noun phrase consists of a noun with one or more adjectives to modify it. So, the noun is "beauty and uniqueness" and the adjective is "its". 

The following connectors are used with a noun or a noun phrase:
Because of: Because of you, I become a successful entrepreneur now.
Owing to: Owing to my hard work, I got straight A's for my exams.
Due to: Due to the rain, Linda cancelled going to the concert last night.

3. We use therefore to join one sentence with another sentence to indicate cause and effect. From example no. 3, we can learn that "Indonesia is beautiful and unique." is the cause, and "It is a perfect tourist destination" is a result/effect. We need to notice here that therefore is used after a sentence that indicate a cause. And a comma is used after therefore.

The following connectors are used in the same way:
Therefore: I worked hard. Therefore, I got straight A's for my exams.
As a result: It rained last night. As a result, Linda cancelled going to the concert.
Consequently: The service is very good. Consequently, we visit the shop again and again.
Hence
As a consequence
Thus
So

I hope that can be useful and helpful. Yet, if you have a question, just go to the comment box and write it. I'll reply you as soon as I read it. Cheers...