Because the earth's axis is tilted. It is all about the tilt of the Earth's axis.
During the summer, the sun's rays hit the Earth at a steep angle. The light does not spread out as much, thus increasing the amount of energy hitting any given spot. Also, the long daylight hours allow the Earth plenty of time to reach warm temperatures.
During the winter, the sun's rays hit the Earth at a shallow angle. These rays are more spread out, which minimizes the amount of energy that hits any given spot. Also, the long nights and short days prevent the Earth from warming up. That's why we have winter.
I hope this helped!
Thank you,
Otaku
Answer:
B. Alert the body to the presence of insects
Answer:
d. Reverser Hierarchical
Explanation:
Expansion diffusion is said to be when a particular trend is spread from it originating point to another point. It might be relocation diffusion whereby a relocating resident share his idea and practice to his/her new residence.
Hierarchical diffusion occur when a new cultural practice is shared to another people. Like in the case of Africa's adapting to white pattern of dressing.
Contagious diffusion is a kind of virus trend like in Nigeria where a dance pattern is transfer to a neighboring country like Ghana.
Stimulus diffusion occur when a people adapt an idea from another and modify it. Example ping pong(Table tennis) originating from Asia and modified by another .
Reverser Hierarchical is not a form of expansion diffusion
Radon is what i got........It is a chemical element
Answer:
The Antarctica is adversely affected.
Explanation:
Without Antarctic Treaty of 1961, the environment of Antarctica is adversely affected due to using it as a site for testing of weapons by the military forces of different countries. The organisms that lives in that region will be negatively affected causes decline in the population and imbalance of ecosystem as well as extinction of many organism so this treaty provides protection to the Antarctica.
