10 billon were born between 1950 and 2015
B because mountains are north for sure
You have not showed any timeline to get the information from?
Answer:
Contrast, is the right answer.
Explanation:
The difference in color or luminance that makes an object separable is known as Contrast. In the context of the real-world visual perception, it is defined by the variance in the color and shine of the object and other articles within the corresponding area of view. Contrast sensitivity is one of the most significant measures of visual function, particularly in the situation of fog, glare or low light.
In the summer season, Earth’s northern hemisphere is tilted towards the sun and in winter season the northern hemisphere is away from the sun. The tilt actually causes a lot of difference in the amount of sunlight received by the earth and since the sunlight is the main cause of the weather change that leads to different seasons.
