How does the earth's tilt in its axis have an effect of 4 seasons in some countries and 2 seasons in others?

Answer 1

It depends on how you classify seasons. Countries that say they have four seasons live farther from the equator. They define seasons by temperature variation and have a cool period (Winter), a hot period (Summer), and two temperate periods separating them (Spring and Autumn).

The tilt of Earth's axis affects the temperature because if your hemisphere is tilted away from the Sun the light hits it less directly and for shorter periods. This means it gets less energy and therefore less heat. If it's tilted toward the sun, the light hits it more directly and for longer periods and it gets more energy. As Earth goes around the

The only countries I've visited that divided their year into two seasons were equatorial countries where Earth's tilt made no difference in temperature (because the equator's tilt relative to the sun is always the same). These countries classified their seasons by minor temperature variations or by how much it rains, but there's hardly any temperature difference.

The amount it rains depends on how much moisture the incoming air masses carry which might depend on temperature in other parts of the world.

Answer 2

The farther from the equator, the more difference in the seasons. At the equator, the temperatures tend to stay pretty much the same year around, but they have rainy seasons and dry seasons instead of winter and summer.

The equatorial countries still have winter and summer solstice and vernal and autumnal equinox, which is our definition of the divisions between 4 seasons.

Answer 3

ALL of Earth experiences 4 seasons but other factors like latitude, aridness, vegetation etc can have the effect of masking spring and fall.