Math
Geography
Biology
History
100
There are 12 apple trees and 8 pear trees in the orchard. How many species of trees are there in the orchard?
2
100
Lake Baikal, the deepest and oldest freshwater lake in the world, is located in which country?
Russia
100
Which land mammal is the largest?
African savannah elephant
100
Who was the leader of the Soviet Union during World War II?
Joseph Stalin
200
3x - 7 = 14
x = 7
200
The city of Venice is famously known for being built on a group of islands in a lagoon. In which country is Venice located?
Italy
200
What is the process by which plants convert sunlight into energy called?
The process is called photosynthesis.
200
Which ancient civilization built the Great Pyramids of Giza?
The ancient Egyptians
300
The sum of two consecutive even numbers is 74. What are the two numbers?
The numbers are 36 and 38.
300
Which two countries share the longest international land border?
Canada and the United States
300
What is the purpose of the circulatory system in the human body?
The circulatory system transports oxygen, nutrients, hormones, and other substances throughout the body and removes waste products.
300
In which year did Christopher Columbus discover America?
1492
400
The sum of two numbers is 20, and their difference is 4. What are the two numbers?
The numbers are 12 and 8.
400
Which country is both the smallest in area and the most densely populated country in the world?
Monaco
400
What is the role of DNA in cells?
DNA carries the genetic information and instructions for the development and functioning of organisms.
400
Who was the first female Prime Minister of the United Kingdom?
Margaret Thatcher
500
If yes, which ones
13, 39 и 48.
500
How many countries are in north america?
23
500
What is the function of the hypothalamus in the brain?
The hypothalamus regulates various bodily functions, including temperature regulation, hunger and thirst, sleep patterns, and hormone production.
500
period of existence of Sparta
XI and II centuries BC