Grammer Mistakes

Three grammar mistakes that i commonly made in my writing are Word Form, Article and Punctuation.
There are some examples taken from my Writing Assignment 1 as shown below:

1. Word Form
The aberrant changes of the earth climate in recent years have been resulted in an increasing number of severe nature (natural) disaster....
comment: since the word "disaster" is a noun, i should use "natural" (adj)rather than "nature" (noun).

The daily activities of humans involve the use of vast amount(amounts) of energy...
comment: in this sentence, the word "amount" is countable and because of the word "vast" in front, it should be plural but not singular, i.e amounts.

.....it might be more than enough to meets (meet) human demands.
comment: the verb "to" should be followed by a base form hence i shouldn't have used the word "meets".

2. Articles

Renewable energy has the potential to meet all human needs and it is abundantly available in the( delete "the") nature.
comment: Do not use article when an uncountable noun is nonspecific, i.e. "nature" is an uncountable and nonspecific noun in my essay.

Although current technology cannot fully achieve such figure from a single renewable energy source, (a) synergy of different renewable energy sources might be more than enough to meet human demands.
comment: the word "synergy" is a singular and countable noun, so it needs an article in front of it.

...it is conceivable that renewable technology will be more efficient and (the)time to recover the cost can be further reduced to 2-3 years.
comment: there is a specific reference after the the word "time" so it needs an article in front of it, and because "time" is uncountable noun in this case so the article should be "the".

3. Punctuation

Renewable energy (,) on the other hand (,) is more flexible.

With the advancement of technology(,) it is conceivable that...


After reviewing my common made mistakes, I found that those grammar mistakes are made due to my carelessness especially for the punctuation and the word form.
I can identify most of them by myself if i have carefully reviewed my essay.I will not allow these mistakes appear again in my next writing as making carelessness mistakes are actually unforgivable, and i should pay more attention in order not to repeat such mistakes.