An uncountable noun cannot be made plural. See also Singular/ Plural Noun.
In examples 1-5, uncountable nouns appear in plural form.
 

 

WRONG
RIGHT

1.

In order to deal with these three existing problems (water pollution, heritage conservations, and inadequate land use of Hong Kong) more details and also some feasible solutions and recommendations will be proposed in this report to improve the development of the harbor area.

In order to deal with these three existing problems (water pollution, heritage conservation, and inadequate land use of Hong Kong) more details and also some feasible solutions and recommendations will be proposed in this report to improve the development of the harbor area.

2.

The heritages are replaced by brand new skyscrapers.

The heritage is replaced by brand new skyscrapers.

3.

This kind of mindset encourages the Hong Kong
government to sell lands to make profit.

This kind of mindset encourages the Hong Kong
government to sell land to make profit.

4.

The Central and Wan Chai reclamations cause pollutions.

The Central and Wan Chai reclamations cause pollution.

5.

With the low availability of land resources, several reclamations have been carried out around the harbour to increase the supply of land for building developments and therefore the pollution problems have intensified.

With the low availability of land resources, several reclamations have been carried out around the harbour to increase the supply of land for building development and therefore the pollution problems have intensified.

 

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Click here for an exercise on countable/ uncountable nouns.

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