Do You Know
Questions & Answers on General Knowledge.
What is the greenhouse effect?
The greenhouse effect is a natural phenomenon that helps regulate Earth’s temperature. Greenhouse gases—carbon dioxide, methane, nitrous oxide, chlorofluorocarbons— act like an insulating blanket, trapping solar energy that would otherwise escape into space. Without this natural "greenhouse effect," temperatures would be about 60 degrees Fahrenheit (15.5 degrees Celsius) lower than they are now, and life as we know it today would not be possible. However, human activities, primarily the burning of fossil fuels and clearing of forests, have enhanced the natural greenhouse effect, causing Earth’s average temperature to rise.
Is it true that boas and pythons can go without food for several days?
How does a black light work?
Which is the highest waterfall in South America?
Should I tell my parents I am being bullied?
My grandmother used to have this watch she wound by shaking it. How is it possible?
What is a disability?
Who owns the satellites?
How does a toaster work?
Do airplanes travel faster from east to west or west to east in the United States?
How does a roller coaster work?
If two planets were really close together and you were between them, how would the gravitational force affect you?
Which was the first ever space station?
What plants and animals might I see on an African safari?
Why do washed clothes dry faster in open air than in a closed room?
Was theatre allowed in medieval Europe?
Why does water stay in the straw when a finger is pressed over one end? How does sealing off the one end make the pressure less?
How do you calculate total speaker impedance? For example, 4 speakers wired in series or parallel. Is there a formula?
How are lakes formed?
Do all flowers close up at night?
How do air currents flow?
What is Euclid’s Elements?
Does Asia have a lot of wildlife?
How are tessellations used in roofing, tiles, and quilts?
Why are women referred to as the “distaff” side of a family?
Which tree produces the largest nut?
How Romantic Are You?
Do You Know?
Our Solar System
Daily GK Quiz
Body Adiposity Index Calculator
Bruce Trademill Test