Kirill Sidorov

Trees

Electromagnetism

Military aircraft

Programming languages

Owls

Parts of vehicles

Electrical engineering

Airports

Chess Tactics

Fabrics

Physical laws

Accounting terms

Algorithms

Fruit

Nodes

Turtles

Noxious plants

Tools programmer

Architectural elements

Philosophical schools

Shotguns

Criminal law

Meteorites

Venomous animals