Fish are vertebrates, which are adapted to life in the aquatic environment. Fish are the most numerous group of vertebrates. The number of different species of fish is almost as much as all other vertebrates together.
X-rays are a form of invisible, high-frequency electromagnetic radiation. X-rays are very small and energetic. They are used in different branches of science.
Our beautiful, one and only home called Earth is called the Blue Planet for a reason. Vast oceans make it exceptional when observed from space. Find out how familiar you are with some of the world's oceans facts.
Put your space and general knowledge to a test by answering some questions covering the achievements of mankind in our galaxy and beyond. A simple and intuitive way to build up your knowledge profile.
Unity among the diverse nation can be achieved and the European Union can serve as a great example. Find out if you are familiar with some of the EU facts in this short general knowledge quiz.
Asia is the world's largest and most populous continent. It has 49 countries and 5 disputed countries. Take this quiz and find out how good do you know capital cities of Asia.
According to the latest research we still don't know everything about our anatomy. There are still a few unknown facts how our body functions. Find out what do you know about yourself.
SQL is a standardized query language for requesting information from a database. You can verify your knowledge by trying to answer a few simple questions.
Chinese cuisine includes styles originating from the diverse regions of China, as well as from Chinese people in other parts of the world. Take this quiz and find out how good do you really know China cuisine.
Mars is the most explored and well know planet so far, so you shouldn't have to much trouble knowing some of its facts. Go through this short quiz and build up you Dreevoo knowledge profile.
A spice is a dried seed, fruit, root, bark, or vegetable substance primarily used for flavoring, coloring or preserving food. Take this quick quiz and build up you Dreevoo bonus!
Sochi is a city in Krasnodar Krai, Russia. This winter Sochi will be in the center of the action, becouse it will host the biggest winter event on the world, Winter Olympic Games.
