Modern big children"s encyclopedia

Are you interested in learning curious facts about everything in the world? Do you consider yourself a real erudite? Then pass the mini-test: choose only the right ones from these statements!
• Black holes consist of dark matter.
• The largest mass extinction in the history of the Earth occurred 65,000,000 years ago.
• The fastest animal is a cheetah.
• The main volume in human blood is occupied by red blood cells.
Well, how, it was possible to find the correct theses, or do you doubt the resulting result?
In fact, absolutely all these statements are erroneous!
Do you want to know what black holes actually consist of, which animal on our planet is the fastest, as well as to discover many other amazing secrets? Then this book is exactly what you need! After all, it contains the most important secrets of space, land, animals and even the human body