(Question)
Q: Which type of weathering causes changes int he rocks materials, chemical or mechanical? Read this paragraph and choose the correct option from the provided answers: The original rock is the source of the inorganic portion of the soil. Mechanical weathering breaks rock into smaller pieces. Chemical reactions change the rock's minerals. 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? Read this paragraph and choose the correct option from the provided answers: Pneumonia is a disease in which some of the alveoli of the lungs fill with fluid so they can no longer exchange gas. Symptoms of pneumonia typically include coughing, chest pain, difficulty breathing, and fatigue. Pneumonia may be caused by an infection or an injury to the lungs. 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? Read this paragraph and choose the correct option from the provided answers: Over much of Earth's past, the climate was warmer than it is today. Picture in your mind dinosaurs roaming the land. They're probably doing it in a pretty warm climate! But ice ages also occurred many times in the past. An ice age is a period when temperatures are cooler than normal. This causes glaciers to spread to lower latitudes. Scientists think that ice ages occurred at least six times over the last billion years alone. How do scientists learn about Earth's past climates?. Choices: - polar age - earth age - thermal age - ice age A:
(Answer)
ice age