EVERYDAY SCIENCE

Detailed explanation-1: -The tropics include the Equator and parts of North America, South America, Africa, Asia, and Australia. The tropics account for 36 percent of Earth’s landmass and are home to about a third of the world’s people. The tropics are warm all year, averaging 25 to 28 degrees Celsius (77 to 82 degrees Fahrenheit).

Detailed explanation-2: -The climate region near the equator with warm air masses is known as tropical. In the tropical zone, the average temperature in the coldest month is 18 °C.

Detailed explanation-3: -Earth’s surface that is closest to the Equator is called the tropics. Two imaginary lines that circle the globe mark the boundaries of the tropics. The line called the Tropic of Cancer marks the northern edge. Its latitude (distance from the Equator) is 23°27′ N.

Detailed explanation-4: -The warmest zone in the 48 contiguous states is the Florida Keys (11b) and the coldest is in north-central Minnesota (2b).

Detailed explanation-5: -Due to the spherical shape of the Earth, sunlight falls on different parts at different angles. Direct and focussed sun rays falls on the equator and hence, the regions here are hotter and warmer. The polar regions receive diffused sun rays, which is why the areas there are colder.