Grammar mistakes

In this e-portfolio, I will identify 3 of my common grammar mistakes.

1. About the articles.
I usually misuse the articles, especially the definite article, 'the'.

e.g.
"Nowadays, we will no longer be surprised when we are reading a newspaper and find it saying the average temperature on the earth has increased by 0.4 to 0.8 degrees C since late 1800's."

In this sentence, I forget to put an article in front of the 'late 1800's'. Because 1800's is a very specific period of time.

The correct version is: "Nowadays, we will no longer be surprised when we are reading a newspaper and find it saying the average temperature on the earth has increased by 0.4 to 0.8 degrees C since the late 1800's."

2. The punctuations.
Sometimes I will misuse the semicolon when I actually need a comma there.

e.g.
"As the population on the earth is growing rapidly; there will be much more pressure on the environment than ever before."

In this sentence, we don't need to use a semicolon after the word 'rapidly'. Because these two parts are actually one sentence, not two.

The correct version is: "As the population on the earth is growing rapidly, there will be much more pressure on the envrionment than ever before."

3.About the pronouns.
I sometime misuse the pronouns, caused the sentence to be unnecessariely complex.

e.g.
"From Singapore's long-term development, it has the necessity promoting green chemistry."

In this sentence, 'it' represents 'Singapore's long-term development', but these two words are too near to each other, I don't need to use a preposition.

The correct version is: "Singapore's long-term development requires promoting green chemistry."