Q: Answer the following question given this paragraph: Glaciers and ice sheets are melting. This can be seen clearly in photographs. The glaciers advanced during the Pleistocene ice age. They have been melting back since then, except for during the Little Ice Age. However, the rate of melting has increased tremendously in recent decades. Q: Glaciers have been melting since what period? Choices: - industrial age - bronze age - stone age - pleistocene ice age A:
A: pleistocene ice age

Q: Answer the following question given this paragraph: Water is an amazing molecule. It has a very simple chemical formula, H 2 O. It is made of just two hydrogen atoms bonded to one oxygen atom. Water is remarkable in terms of all the things it can do. Lots of things dissolve easily in water. Some types of rock can even completely dissolve in water! Other minerals change by adding water into their structure. Q: What is the common term for the chemical formula h 2 0? Choices: - hydrogen - air - oxygen - water A:
A: water

Q: Answer the following question given this paragraph: What happens when forces of evolution work over a long period of time? The answer is macroevolution. An example is the evolution of a new species. Q: What happens when forces of evolution work over a long period of time? Choices: - substantial evolution - Microevolution - developmental evolution - macroevolution A:
A: macroevolution

Q: Answer the following question given this paragraph: Q: What two substances do plants give off when they make food? Choices: - water and oil - carbon dioxide and oxygen - chlorophyll and nitrogen - oxygen and water A:
A: oxygen and water