General Knowledge Questions

What is megacity?

• A small town with a population of less than 1,000 people.
• A village with a population of 5,000 people.
• A very large city with a population of over 10 million people.
• A medium-sized city with a population of 500,000 people.

What is the main factor contributing to the growth of megacities?

• Decrease in population

• Increase in agricultural land

• Rapid industrialization and urbanization

• Expansion of rural areas

What are some challenges faced by megacities?

• Lack of infrastructure and services

• Low population density

• Abundance of natural resources

• Limited job opportunities

In direct current, the electrons ___.

• flow in one direction
• reverse direction constantly
• stop moving
• flow in multiple directions

Helium gas can be found ___.

• in natural gas deposits and as a byproduct of radioactive decay in rocks
• in light bulbs
• in car tires
• in ice cream

A diamond can be destroyed ___.

• By dropping it in water
• By exposing it to sunlight
• By burying it underground
• By subjecting it to extreme heat or pressure.

The human brain can continue to live without oxygen for ___.

• 1-2 minutes
• 10-12 minutes
• 30-35 minutes
• 4-6 minutes

When we breathe out, ___.

• We release water vapor and other waste gases.
• We inhale oxygen and other essential gases.
• We release carbon dioxide and other waste gases.
• We absorb carbon dioxide and other waste gases.

What is the largest planet in our solar system?

• Mercury

• Venus

• Jupiter

• Mars

What is the process of plants converting sunlight into energy called?

• Photosynthesis

• Respiration

• Fermentation

• Oxidation