Warning: Cannot modify header information - headers already sent by (output started at /home/content/70/7481070/html/appsrc/doyouknow.php:18) in /home/content/70/7481070/html/header.php on line 20

Warning: Cannot modify header information - headers already sent by (output started at /home/content/70/7481070/html/appsrc/doyouknow.php:18) in /home/content/70/7481070/html/header.php on line 21
cExams.net
Do You Know
Questions & Answers on General Knowledge.

Question:
How did the first reptiles evolve on Earth?
Answer:
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 planes disappear in the Bermuda Triangle?
  • Why do objects on earth accelerate downward at the same speed regardless of their mass?
  • What did the Chinese take to Japan?
  • What is a cord used to measure?
  • Where is the longest bridge?
  • What are sunspots?
  • What are earthquake zones?
  • Why and how does water conduct electricity?
  • If only electrons move around, why do you keep using positive charges in the demos?
  • In alternating current, current reverses directions rapidly between the two wires, white and black. Why is it that only the black wire is "hot"?
  • Who was Mona Lisa in da Vinci’s famous masterpiece?
  • How do rockets work?
  • I didn't understand how a car (or wagon) starts its motion.
  • Is water, at say 35° F, more dense than water at 80° F?
  • Why is it that the times at which the moon sets and rises change so much from day to day?
  • How does an astronaut get prepared for the long period of antigravity that he is going to be put on?
  • What properties of rubber change in order to make one ball bounce better than another?
  • Is the rattlesnake poisonous?
  • Where is the driest place in the world?
  • How do you push a shopping cart and have the cart exert the same force on you, if you are still traveling forward? Friction? Air Resistance?
  • What is a citizen?
  • Why are days longer in summer and shorter in winter?
  • Do volcanoes erupt regularly?
  • Why do some parts of a house get dustier than others?
  • How did the Civil War end?
  • Benefits of Papayas
  • Rules to play Hiking
  • Benefits of Tamarillo fruits
  • Ideas To Improve Student Motivation
  • Idioms
  • Enhanced English Grammar Test

  • Popular Easy to Grow House Plants

    Haworthia

    Grow in moderate light. Pot in a 50 50 mix of coarse sand and potting mix. Allow soil to approach dryness before watering. Feed in spring and again in the fall with half strength house plant fertilizer. Propagate by offsets.


    Chourishi Systems