The hottest zone on Earth is the Tropic of Cancer, which is located at approximately 23.5 degrees north of the equator.
This zone receives the most direct sunlight throughout the year, leading to higher temperatures. The Tropic of Cancer is known for its hot and humid climate, with average temperatures ranging from 20°C to 30°C (68°F to 86°F).
However, the hottest place on Earth is not necessarily located within the Tropic of Cancer. The hottest recorded temperature on Earth was 56.7°C (134°F) in Death Valley, California, which is located outside of the Tropic of Cancer.
The hottest zone can also refer to the stratosphere, which is a layer of the Earth's atmosphere located between 10 km and 50 km above the surface. This zone contains the ozone layer, which absorbs harmful ultraviolet radiation from the sun, leading to higher temperatures.
It is important to note that the hottest zone can vary depending on the context. For example, the hottest zone in a house might be the kitchen, while the hottest zone in a car might be the dashboard.