Unequal heating of Earth 's surface by the Sun causes global wind patterns, and winds are a key factor in determining global weather patterns. Given these facts, what is a key factor determining global weather patterns among the following options: - influenza orthomyxoviruses - Something with a head, thorax, and abdomen - The atmosphere - Water density - Underground movement - Unequal heating of the earth - health - the sun's energy
Unequal heating of the earth

Caffeine is a central nervous system stimulant, and stimulants can cause overheating and dehydration. Given these facts, caffeine can cause among the following options: - congestion - anemia - constipation - sweating - hives - energy usage - dehydration - heat energy
dehydration

Q: An image in a mirror is formed by reflecting light, and reflectance is the ratio of light out to light in. Given these facts, an image is formed where by the ratio of light out to light in among the following options: - fronts - Smooth - segmented - Joules - two - mirror - an object - photons
A: mirror

Question: Threatening behavior by predators causes a porcupine to extend its quills, and porcupine quills can be extraordinarily painful. Given these facts, what can threatening behavior be among the following options: - opossums - painful - imbalanced - tiny - threatened - smoking - comprehensive - funny
Answer: painful

*Question*
Aplant requires water to grow, and water is absorbed by a plant's roots. Given these facts, what helps plants grow among the following options: - Glucose - Enzymes - Roots - Cold temperatures - Bees - RNA - Confined Spaces - Shade
**Answer**
Roots

(Q).
Killing microorganisms in food can be used to extend the shelf life of that food, and irradiation kills microorganisms that spoil food. Given these facts, what can be used to extend the shelf life of food among the following options: - irradiation - farming - Dehydration - rays or beams - vegetables - Cooking - Enzymes - fruit
(A).
irradiation