The correct answer is option b, that is, triggered by changes in the weather.
Hibernation refers to a state of lower metabolism and inactivity usually witnessed in endotherms. This condition is featured by a slow heart rate, slow breathing, low metabolic rate, and low body temperature. It assists the majority of the endotherms to thrive in the cold seasons. For example, hibernation of a bear in winters. Therefore, weather change can stimulate hibernation.
Answer:
Gravity
because the earth which pulls any object towards it center and the velocity is achieved
A substance intentionally added that affects the nature and quality of food is called food material.
There are seven most important components in food materials: carbohydrates, fats, proteins, vitamins, mineral salts, water and fibre.
Some other examples of food material:
1) Food dyes are chemical substances who gives artificial color to the food.
It is important to know which food dyes are in food because some dyes can cause allergic reactions or cancer.
2) Emulgators are used as an additive to food to emulsify some food.
Emulsions are two or more liquids that are normally not mixable. For example egg yolk and mayonnaise.
More about food dyes: brainly.com/question/23516560
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