In 
Change preposition
Nowadays
nowadays
 big number of Add an article
a nowadays
people
 and different organisations like governmentsUse synonyms
Add the comma(s)
, for example,
for example
 NASA want to discover new life in other Linking Words
plants
 like Mars and spent on Correct your spelling
planets
this
 research big amount of money. Linking Words
However
 , many Linking Words
people
 do not like Use synonyms
this
 idea they think that it is indignantly. 
On the one hand , Linking Words
population
 is growing significantly every year and now the Add an article
the population
nomber
 of Correct your spelling
number
people
 Use synonyms
have
 already reached eight billion. So Correct subject-verb agreement
has
government
 is Add an article
the government
concerning
 about Replace the word
concerned
this
 fast growth and Linking Words
want
 to colonise Correct subject-verb agreement
wants
new
 planet to give Add an article
a new
people
 opportunities to live peacefully. Use synonyms
Secondly
, it is a good idea to set up many factories and plants if it happened , our planet would become less polluted. Linking Words
In addition
 , Linking Words
in
 other Change preposition
on
planets
 a lot of natural resources Use synonyms
for instance
 different types of iron , different expensive stones like diamonds etc. Well it will be great to mine all Linking Words
Linking Words
this
 natural resources somewhere , but not Change the determiner
these
in
 Change preposition
on
the 
our planet. By way of Remove the article
apply
contrast
 we understand that all Add a comma
,contrast
what
 I mentioned Change the word
that
it 
is very expensive and complicated to make Correct pronoun usage
apply
it 
in real life. 
Correct pronoun usage
apply
On the other hand
 , try to discover other Linking Words
planets
 while approximately 70 Use synonyms
percent
 of Change the spelling
per cent
people
 are poor and 30 Use synonyms
percent
 can not afford to eat a general meal. Change the spelling
per cent
Instead
 of helping Linking Words
for 
poor Change preposition
apply
people
 , we can not even Use synonyms
to 
defend wild animals from extinction and forests from deforestation. Rather than in our world a lot of places Fix the infinitive
apply
which 
have not Correct pronoun usage
apply
discovered
 yet. Add a missing verb
been discovered
Fore
 example oceans and rainforests. 
In conclusion , now it is necessary to spend Correct your spelling
For
big
 amount of money Add an article
a big
for
 Change preposition
on
the 
discovering Correct article usage
apply
planets
. It is better to spend all Use synonyms
Linking Words
this
 trillions for Change the determiner
these
the
 peaceful life Correct article usage
a
fore
 everyone in Correct your spelling
for
this
 world. Linking Words
As a result
 , only after Linking Words
that
 we can try to discover Add a comma
,that
another 
Replace the adjective
another planet
other planets
planets
Use synonyms