Use Brainly when you need a good explanation, or ask a teacher or someone you trust. Communicating mistakes is key! Also learning by repetition is a fundamental underlining way that us humans learn.
Explanation: To remember something, thinking of it after reading or studying it for the first time. Then think of it again in a minute. Then think of it again in 3-5 minutes. Then 15-20 minutes. The slow repetition is key, contrary to repeating the information in your head persistently. This actually is overthinking in a way because of the high influx(inward movement) of thoughts, which can be unbelievably frustrating when 10 minutes after things constantly about one thing, you can’t remember it. I’ve been there, less is more with your mind sometimes.
The sun rays reach the earth's surface at an angle of 90 degrees at the equator which is direct and is short as compared to the poles it's long and about 66.5 degrees to the south and north. In the tropics its falls as 23.5 degrees in the northern and southern hemisphere.
The sun rays that form a tangent to the northern hemisphere are at 0, 23.5, 66.5 degrees i.e tropics, temperate and poles. And same is for the southern hemisphere.
On June 21 the southern hemisphere has winter seasons as the amount of insolation that reaches the southern side is less due to the tilt of the sun.
