Question

plz answer my question...​

Answer 1

Answer:

Explanation:

Infectious diseases are transmitted from person-to-person through the transfer of a pathogen such as bacteria, viruses, fungi or parasites. A non-infectious disease cannot be transmitted through a pathogen and is caused by a variety of other circumstantial factors

Answer 2

Answer:

uses

• sulphuric acid:The major use of sulfuric acid is in the production of fertilizers, e.g., superphosphate of lime and ammonium sulfate. It is widely used in the manufacture of chemicals, e.g., in making hydrochloric acid, nitric acid, sulfate salts, synthetic detergents, dyes and pigments, explosives, and drugs.

• nitric acid:Other uses for nitric acid include woodworking, rocket propulsion, metal finishing, and sanitizing. The highly corrosive and oxidizing acid can also be used for dyes and certain kinds of explosives, since nitric acid can produce potentially explosive hydrogen gas when combined with some common metals.Nitric acid is used in the production of ammonium nitrate and calcium ammonium nitrate which find applications as fertilizers.

• sodium hydroxide:It is major ingredient in drain and oven cleaners.

        It is used in chemical manufacturing, oil refining, hydraulic fracturing,                 water treatment and metal processing.

        It is used in the manufacture of fabric, plastic wrap, paper and soap.

• calcium hydroxide:  It's used in industrial settings, such as sewage      treatment, paper production, construction, and food processing. It also has medical and dental uses. For example, root canal fillings often contain calcium hydroxide.

• sodium chloride:Sodium chloride (NaCl), also known as salt, is an essential compound our body uses to:

absorb and transport nutrients.

maintain blood pressure.

maintain the right balance of fluid.

transmit nerve signals.

contract and relax muscles.

• sodium carbonate:It is used in the manufacture of detergents, soaps, paper.
• Also used in the manufacture of water glass (sodium silicate), borax, sodium phosphate, and many other sodium compounds.
• It is used in as a wetting agent in brick industry.

Explanation: