Q: The saguaro doesn't have any leaves to lose water by which process? Read this paragraph and choose the correct option from the provided answers: The saguaro cactus pictured in Figure below has adapted in all three ways. When it was still a very small plant, just a few inches high, its shallow roots already reached out as much as 2 meters (7 feet) from the base of the stem. By now, its root system is much more widespread. It allows the cactus to gather as much moisture as possible from rare rainfalls. The saguaro doesn't have any leaves to lose water by transpiration. It also has a large, barrel-shaped stem that can store a lot of water. Thorns protect the stem from thirsty animals that might try to get at the water inside. Choices: - respiration - evaporation - propagation - transpiration A:
transpiration

Q: What is the smallest unit of a chemical element called? Read this paragraph and choose the correct option from the provided answers: An atom is the smallest unit of a chemical element . That is, an atom has all the properties of that element. All atoms of the same element have the same number of protons. Choices: - cell - droplet - nucleus - atom A:
atom

Q: Q: Partially decayed remains of plants and animals form the organic portion of what? Read this paragraph and choose the correct option from the provided answers: the partially decayed remains of plants and animals that forms the organic portion of soil. Choices: - minerals - nutrients - grasses - soil A:
A: soil

Question: Q: What is the hardest of all minerals? Read this paragraph and choose the correct option from the provided answers: Diamonds like the one pictured in the Figure below are the hardest of all minerals. Is a diamond a crystalline or an amorphous solid? How do you know?. Choices: - titanium - gold - platinum - diamonds A:
Answer: diamonds

*Question*
Q: What is controlled by both genes and experiences in a given envionment? Read this paragraph and choose the correct option from the provided answers: Most animal behaviors are controlled by both genes and experiences in a given environment. Choices: - reflexes - instincts - learned behaviors - animal behaviors A:
**Answer**
animal behaviors

*Question*
Q: The abundance of this substance in the atmosphere is what most scientist agree that is causing global warming? Read this paragraph and choose the correct option from the provided answers: Most scientists agree that global warming is caused by more carbon dioxide in the atmosphere (see Figure below ). This increases the greenhouse effect. There is more carbon dioxide mainly because of the burning of fossil fuels. Destroying forests is another cause. With fewer forests, less carbon dioxide is removed from the atmosphere by photosynthesis. Choices: - argon - iron oxide - liquid dioxide - carbon dioxide A:
**Answer**
carbon dioxide