General Knowledge

Explanation: The Seven Rila Lakes are located in Bulgaria.

Explanation: Antarctica holds Earth's largest volume of ice.

Explanation: Uzbekistan and Liechtenstein are the only doubly landlocked countries.

Explanation: A large group of islands is an archipelago.

Explanation: Lakes are a source of terrestrial moisture (per the given key).

Explanation: Rainfall caused by mountains is orographic rainfall.

Explanation: One degree of longitude corresponds to a 4-minute time difference.

Explanation: Seasons change because the Earth revolves around the Sun (with a tilted axis).

Explanation: The Equator is the largest circle of latitude on Earth.

Explanation: Maize, rice, and wheat are cereal crops.