Sat, Sep 26398 questions

How many bones are in the adult human body?

answered 206141 agreed, 140 neededsigned

How many planets are in the Solar System?

answered 8140 agreed, 140 neededsigned

Which blood type is the universal donor for red blood cells?

answered O negative188 agreed, 140 neededsigned

Which is the hardest natural mineral on the Mohs scale?

answered diamond190 agreed, 140 neededsigned

Which physicist discovered radium and polonium with her husband?

answered Marie Curie142 agreed, 140 neededsigned

Which naturalist wrote On the Origin of Species?

answered Charles Darwin140 agreed, 140 neededsigned

Which scientist wrote the Principia Mathematica in 1687?

answered Isaac Newton142 agreed, 140 neededsigned

Which scientist proposed the theory of general relativity?

answered Albert Einstein140 agreed, 140 neededsigned

Which organ pumps blood through the human body?

answered heart140 agreed, 140 neededsigned

Which gas do plants absorb from the air for photosynthesis?

answered carbon dioxide141 agreed, 140 neededsigned

Which planet in the Solar System is the largest?

answered Jupiter140 agreed, 140 neededsigned

Which planet in the Solar System is known as the Red Planet?

answered Mars140 agreed, 140 neededsigned

Which chemical element has the symbol Cu?

answered Copper140 agreed, 140 neededsigned

Which chemical element has the symbol W?

answered Tungsten140 agreed, 140 neededsigned

Which chemical element has the symbol Sn?

answered Tin140 agreed, 140 neededsigned

Which chemical element has the symbol Hg?

answered Mercury141 agreed, 140 neededsigned

Which chemical element has the symbol Pb?

answered Lead140 agreed, 140 neededsigned

Which chemical element has the symbol Ag?

answered Silver140 agreed, 140 neededsigned

Which chemical element has the symbol K?

answered Potassium140 agreed, 140 neededsigned

Which chemical element has the symbol Na?

answered Sodium141 agreed, 140 neededsigned

Which chemical element has the symbol Fe?

answered Iron140 agreed, 140 neededsigned

Which chemical element has the symbol Au?

answered Gold141 agreed, 140 neededsigned

Which desert covers most of Mongolia's southern border with China?

answered Gobi Desert140 agreed, 140 neededsigned

Which is the longest river in South America?

answered Amazon River190 agreed, 140 neededsigned