When part of Earth's surface is tilted toward the Sun, this causes days and nights.

A. longer; shorter
B. shorter; longer
C. warmer; colder
D. colder; warmer

Option A. longer; shorter

Explanation:

When part of Earth's surface is tilted toward the Sun, this causes longer days and shorter nights because it is a summer season. In summer season, days are longer and nights are shorter. This tilting of earth is very important because seasons are formed through this. There are some planets where there is no or less tilting, so there are no seasons there.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

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