What is the subject of the map and what features are labeled on it?

Subject of the Map:

The map is titled "Евразия. Физическая карта", which translates to "Eurasia. Physical map".

Labeled Features:

• Lakes: оз. Ладожское (Lake Ladoga), оз. Онежское (Lake Onega), оз. Аральское (Aral Sea), оз. Балхаш (Lake Balkhash), оз. Лобнор (Karakoshun Lake).
• Rivers: р. Волга (Volga River), р. Дунай (Danube River), р. Лена (Lena River), р. Енисей (Yenisei River - implied by location and flow), р. Обь (Ob River), р. Амур (Amur River), р. Хуанхэ (Yellow River), р. Янцзы (Yangtze River), р. Брахмапутра (Brahmaputra River), р. Евфрат (Euphrates River), р. Тигр (Tigris River).
• Geographic Lines: Экватор (Equator), Северный тропик (Tropic of Cancer).
• Seas/Water Bodies: Каспийское море (Caspian Sea - labeled as 'море'), 'северный тропик' could refer to a body of water in the context of a map, but is labeled as a line.

General Observation:

The map displays a physical overview of Eurasia, marking major bodies of water (lakes and rivers) and key geographical lines like the equator and the Tropic of Cancer.