Sodium benzoate is used for the preservation of food. It has the chemical formula NaC₆H₅CO₂. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments

Correct Option: A

Sodium benzoate is used for the preservation of food. It has the chemical formula NaC₆H₅CO₂. It is the sodium salt of benzoic acid and exists in this form when dissolved in water. It can be produced by reacting sodium hydroxide with benzoic acid. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments

Emphysema is the common lung disease caused by asbestos. Emphysema is a lung condition in which tiny air sacs in the lungs - alveoli - fill up with air. As the air continues to build up in these sacs, they expand, and may break or become damaged and form scar tissue. The patient becomes progressively short of breath. Emphysema is a type of COPD (chronic obstructive pulmonary disease).

Correct Option: A

Emphysema is the common lung disease caused by asbestos. Emphysema is a lung condition in which tiny air sacs in the lungs - alveoli - fill up with air. As the air continues to build up in these sacs, they expand, and may break or become damaged and form scar tissue. The patient becomes progressively short of breath. Emphysema is a type of COPD (chronic obstructive pulmonary disease).

Cone cells, or cones, are photo receptor cells in the retina of the eye that are responsible for colour vision, they function best in relatively bright light, as opposed to rod cells that work better in dim light. Cone cells are densely packed in the fovea, but quickly reduce in number towards the periphery of the retina. It allow the perception of colour

Correct Option: D

Cone cells, or cones, are photo receptor cells in the retina of the eye that are responsible for colour vision, they function best in relatively bright light, as opposed to rod cells that work better in dim light. Cone cells are densely packed in the fovea, but quickly reduce in number towards the periphery of the retina. It allow the perception of colour

Generally, there are four different tea categories that differ in processing methods. By withering, new picked leaves are thinly spread to dry during this process. Heated air is forced over the leaves if the climate is not suitable. The main goal of this process is to reduce the water content. By the end of withering, the leaves should be pliable enough to be rolled. From the withering racks, the leaves are now twisted and rolled so that the leaf cells are broken up. Oxidation is a bio-chemical process where oxygen is absorbed. It begins once the leaf membranes are broken during the rolling process. Oxidation causes the leaves to turn bright copper in colour. During the stage of drying or firing, the leaves are dried evenly and thoroughly without being burnt. Firing the leaves stops the oxidation process.

Correct Option: C

Generally, there are four different tea categories that differ in processing methods. By withering, new picked leaves are thinly spread to dry during this process. Heated air is forced over the leaves if the climate is not suitable. The main goal of this process is to reduce the water content. By the end of withering, the leaves should be pliable enough to be rolled. From the withering racks, the leaves are now twisted and rolled so that the leaf cells are broken up. Oxidation is a bio-chemical process where oxygen is absorbed. It begins once the leaf membranes are broken during the rolling process. Oxidation causes the leaves to turn bright copper in colour. During the stage of drying or firing, the leaves are dried evenly and thoroughly without being burnt. Firing the leaves stops the oxidation process.

dehydration is the condition where there is acute shortage of water in our body. This occurs when the amount of water leaving our body is greater than the amount consumed. There are three types of dehydration: hypotonic or hyponatremic (primarily a loss of electrolytes, sodium in particular), hypertonic or hypernatremic (primarily a loss of water), and isotonic or isonatremic (equal loss of water and electrolytes). In humans, the most commonly seen type of dehydration by far is isotonic (isonatraemic) dehydration which effectively equates with hypovolemia, but the distinction of isotonic from hypotonic or hypertonic dehydration may be important when treating people who become dehydrated.

Correct Option: D

dehydration is the condition where there is acute shortage of water in our body. This occurs when the amount of water leaving our body is greater than the amount consumed. There are three types of dehydration: hypotonic or hyponatremic (primarily a loss of electrolytes, sodium in particular), hypertonic or hypernatremic (primarily a loss of water), and isotonic or isonatremic (equal loss of water and electrolytes). In humans, the most commonly seen type of dehydration by far is isotonic (isonatraemic) dehydration which effectively equates with hypovolemia, but the distinction of isotonic from hypotonic or hypertonic dehydration may be important when treating people who become dehydrated.