Explanation

Sociology is the study of social life, social change, and the social causes and consequences of human behavior.

The term sociology was first coined in 1780 by the French essayist Emmanuel-Joseph Sieyes.

Explanation

• Exobiology is the study of likely nature or possibility of life in space or other planets.
  
• It is a branch of biology which deals with the study of life in outer space.
• It is also known as “Astrobiology”.
• It actually deals with the origin, evolution, distribution, and future of life in the universe.

Explanation

The Solvay process is an industrial process that uses limestone (CaCO3 )

to produce carbon dioxide (CO2 )

which reacts with ammonia (NH3 )

dissolved in brine (concentrated NaCl(aq)) to produce sodium carbonate.

ND-7-5-2023

Explanation

Why lightning comes faster than thunder? 5 marks

Lightning is faster than thunder.

• Lightning and thunder happen at the same time.

• But you see lightning before you hear thunder

• because light, which travels a million times faster than sound, arrives almost instantly.

• Sound, on the other hand, takes about five seconds to travel one mile.

• light at a speed of around 300,000,000 meters per second travels much faster than sound which moves at 340 meters per second.

Explanation

 the first aid to controlling bleeding

• Use of bandage
• Apply direct pressure
• Elevate the affected part
  

Explanation

 Heparin and Enoxaparin are both anticoagulants, but their doses and administration schedules differ.

Enoxaparin is a low molecular weight heparin (LMWH) and requires less frequent dosing compared to regular heparin.

Explanation

Acetic acid can be prepared by the hydrolysis of: Methyl cyanide
(Methyl cyanide, also known as acetonitrile, upon hydrolysis yields acetic acid.)

Explanation

The decomposition reaction is: 

ZnCO 3(s)→ZnO(s)+CO 2(g) One mole of ZnCO₃ produces one mole of CO₂, so 10 moles will produce 10 moles of CO₂.

The molar mass of CO₂ is: 

CO₂=12+(16×2)=44g/mol Therefore, 

10 moles of CO₂=10×44=440g.

Explanation

Gonorrhoea is a sexually transmitted infection, whereas influenza, tuberculosis, and typhoid are spread through other means.

Explanation

The enzymes required for the replication of the HIV, such as reverse transcriptase, integrase, and protease, are located inside the capsid.

The capsid is the protein shell surrounding the viral RNA and enzymes, enabling the virus to replicate once it enters a host cell.