(Question)
Q: Which type of weathering causes changes int he rocks materials, chemical or mechanical? Choices: - liquid - nuclear - mineral - chemical A:
(Answer)
chemical

(Question)
Q: What the name of the disease where some of the alveoli of the lungs fill with fluid so they can no longer exchange gas? Choices: - leukemia - lung cancer - emphysema - pneumonia A:
(Answer)
pneumonia

(Question)
Q: What do you call a period when temperatures are cooler than normal, causing glaciers to spread? Choices: - polar age - earth age - thermal age - ice age A:
(Answer)
ice age