Q: Q: What is a soft, malleable, and corrosion resistant material called? Read this paragraph and choose the correct option from the provided answers: Lead is a soft, malleable, and corrosion resistant material. The ancient Romans used lead to make water pipes, some of which are still in use today. Choices: - tin - copper - gold - lead A:
A: lead

Q: Q: Both energy and heat can be expressed in units of what? Read this paragraph and choose the correct option from the provided answers: Energy and heat are expressed in units of joules. Choices: - amperes - velocities - ohms - joules A:
A: joules

Q: Q: A comet striking the earth may have caused mass extinction, this would have decreased sunlight, which would have effected what plant process reducing food? Read this paragraph and choose the correct option from the provided answers: At the end of the Cretaceous Period, or 65 million years ago, all dinosaurs (except those which led to birds) went extinct. Some scientists believe a possible cause is a collision between the Earth and a comet or asteroid. The collision could have caused tidal waves, changed the climate, and reduced sunlight by 10-20%. A decrease in photosynthesis would have resulted in less plant food, leading to the extinction of the dinosaurs. Choices: - fertilization - decomposition - glycolysis - photosynthesis A:
A: photosynthesis

Q: Q: What are natural resources which can be replaced in a relatively short period called? Read this paragraph and choose the correct option from the provided answers: Renewable resources are natural resources that can be replaced in a relatively short period of time or are virtually limitless in supply. Renewable energy resources include sunlight, moving water, wind, biomass, and geothermal energy. Each of these energy resources is described in Table below . Resources such as sunlight and wind are limitless in supply, so they will never run out. Besides their availability, renewable energy resources also have the advantage of producing little if any pollution and not contributing to global warming. The technology needed to gather energy from renewable resources is currently expensive to install, but most of the resources themselves are free for the taking. Choices: - solvent resources - materials resources - replaceable resources - renewable resources A:
A: renewable resources