Lower fertility rates or religion beliefs
It is continent cause there is no term for many continents because continent is the biggest landmass.
They will have to adapt to climate.
Answer:
The five main latitude regions of Earth's surface comprise geographical zones[1], divided by the major circles of latitude. The differences between them relate to climate. They are as follows:
The North Frigid Zone, between the North Pole at 90° N and the Arctic Circle at 66° 33' N, covers 4.12% of Earth's surface.
The North Temperate Zone, between the Arctic Circle at 66° 33' N and the Tropic of Cancer at 23° 27' N, covers 25.99% of Earth's surface.
The Torrid Zone, between the Tropic of Cancer at 23° 27' N and the Tropic of Capricorn at 23° 27' S, covers 39.78% of Earth's surface.
The South Temperate Zone, between the Tropic of Capricorn at 23° 27' S and the Antarctic Circle at 66° 33' S, covers 25.99% of Earth's surface.
The South Frigid Zone, from the Antarctic Circle at 66° 33' S and the South Pole at 90° S, covers 4.12% of Earth's surface.
Earth's climatic zones
Ice cap
Tundra
Boreal
Warm temperate
Subtropical
Tropical
On the basis of latitudinal extent, the globe is divided into three broad heat zones.
Earth is composed of four main layers, starting with an inner core at the planet's center, enveloped by the outer core, mantle, and crust. The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius.
source: nasa