Read each statement regarding food and beverages in the lab and determine if each is true or false. Tobacco products of all kinds are prohibited in lab.
Beverages are allowed in lab as long as they are in containers with lids.
Chewing gum is okay in the lab as long as you don't blow bubbles.
Food items should not be brought into the lab.

1. True

2. False

3. False

4. True

Explanation:

A lab is an abbreviation for laboratory and it can be defined as a building that is equipped with scientific equipments and apparatus, which are used for performing scientific experiments, manufacturing of chemicals and drugs, research, testing and analysis of hypothesis in order to establish a theory.

Generally, laboratory scientists, technicians, students and anyone going into a laboratory is prohibited from taking in edible items such as food and water.

Basically, all laboratories are required to place a visible warning sign around the lab prohibiting the bringing in and ingestion of food in any form.

1. True: Tobacco products of all kinds are prohibited in lab.

2. False: Beverages are allowed in lab as long as they are in containers with lids. It's completely prohibited from the lab so as to prevent food poisoning.

3. False: Chewing gum is okay in the lab as long as you don't blow bubbles.

4. True: Food items should not be brought into the lab.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)