Question

GIVE ONE WORD FOR THEN FOLLOWING. [10]

1. Harmful rays –

2. Full form of CFCs-

3. Full form of CNG-

4. Fossil fuel-

5. Dry ice-

6. Nobel gas –

7. The process of adding chlorine –

8. The liquid that passes through the filter paper-

9. Waterborne disease-

10. Percentage of water in human body​

Answer 1

1. Sunlight is composed of two harmful types of radiation: ultraviolet A (UVA) and ultraviolet B (UVB) rays.
2. Chlorofluorocarbons
3. Compressed natural gas
4. noun Energy.
5. any combustible organic material, as oil, coal, or natural gas, derived from the remains of former life.
6. Dry Ice is the common name for solid carbon dioxide (CO2). It gets this name because it does not melt into a liquid when heated; instead, it changes directly into a gas (a process known as sublimation).
7. The noble gases make a group of chemical elements with similar properties: under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity. The six noble gases that occur naturally are helium, neon, argon, krypton, xenon, and the radioactive radon.
8. Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water.
9. filtrate
10. The solid which collects in the filter paper is called the residue. The clear liquid which passes through the filter paper is called the filtrate.
11. Some waterborne pathogenic microorganisms spread by water can cause severe, life-threatening diseases. Examples are typhoid fever, cholera and Hepatitis A or E. Other microorganisms induce less dangerous diseases. Often, diarrhoea is the main symptom (figure 1).
12. Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.

Answer 2

Answer:

1 - UVB rays,

2 - Chlorofluorocarbons

3 - Compressed Natural Gas

4 - Petroleum, coal, natural gas and orimulsion

5 - Frozen carbon dioxide,

6 - helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). Oganesson (Og)

7 - Water chlorination

8 - filtrate

9 - typhoid fever, cholera and Hepatitis A or E.

10 - Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.