Do You Know
Questions & Answers on General Knowledge.

How did the first reptiles evolve on Earth?
About 300 million years ago, amphibians evolved into reptiles. These reptiles continued to adapt to their environment. They developed a better way of breathing than amphibians – amphibians breathe by moving their throat muscles, but the dinosaurs moved the muscles below the rib cage and abdomen, just like us. As a result, they could take in more air.
--- >>>
More Questions:
  • Why do camels have humps?
  • How can you make an electromagnet from a battery and copper wire?
  • Do asteroids have moons?
  • How do blind people get around in the community?
  • How can an insulator carry a charge if it cannot conduct electricity? How can one charge an insulator? Can an insulator be charged by induction?
  • How does an amplifier work and what are the basic components of one?
  • If nothing sticks to Teflon, then how does Teflon stick to a pan?
  • How do you get static out of hair?
  • How does an infrared sensor faucet work?
  • How do submarines sink if they have air inside?
  • What is blood?
  • Can I eat an insect?
  • Why is the Andromeda galaxy so special?
  • What’s a cobweb?
  • What is a barometer?
  • How were stones used as weights and measures?
  • What is the difference between fields and charges (magnetic and electric)?
  • What is a planet?
  • What is the Reaumur Scale for temperature and how does it compare to degrees F, C, and K?
  • What are "dog days"?
  • How many eggs do reptiles lay?
  • Why does a rooster crow when the Sun comes up?
  • What is a microwave and what does it do?
  • Why do different sunglasses appear darker than others?
  • How much life is consumed each time you turn on a fluorescent lamp?
  • Body Analyzer
  • Body Mass Index (BMI)
  • Ujjain - The City of Temples
  • Total Body Water
  • 101 Ideas to Make the World a Better Place
  • Prevention from Mosquitoes

  • Chourishi Systems