COUNTABLE AND UNCOUNTABLE NOUNS

Which of the following sentences is grammatically correct?

• The informations you gave me were very helpful.

• We need to buy some new furnitures for the office.
  

• Much research has been done on climate change.

• There are too much traffic in the mornings.

Identify and correct the error in the following sentence
"She gave me many good advices about the project."

Complete the sentence using the correct form of the word in brackets (countable or uncountable)

"There isn't much __________ available about the long-term effects of the medication."
(information)

Find the incorrect word or phrase and explain the error:

"There were too many traffic on the roads due to the festival."

Is the word “luggage” countable or uncountable?