Answer the following question given this paragraph: Oil comes out of the ground as crude oil. Crude oil is a mixture of many different hydrocarbons. Oil is separated into different compounds at an oil refinery ( Figure above ). This is done by heating the oil. Each hydrocarbon compound in crude oil boils at a different temperature. We get gasoline, diesel, and heating oil, plus waxes, plastics, and fertilizers from crude oil. Q: Crude oil is a mixture of different types of what? Choices: - contaminants - fats - greenhouse gases - hydrocarbons A:
hydrocarbons
Answer the following question given this paragraph: Introduction All life on Earth is related. Evolutionary theory states that humans, beetles, plants, and bacteria all share a common ancestor, but that millions of years of evolution have shaped each of these organisms into the forms seen today. Scientists consider evolution a key concept to understanding life. Natural selection is one of the most dominant evolutionary forces. Natural selection acts to promote traits and behaviors that increase an organism's chances of survival and reproduction, while eliminating those traits and behaviors that are to the organism's detriment. But natural selection can only, as its name implies, selectit cannot create. The introduction of novel traits and behaviors falls on the shoulders of another evolutionary forcemutation. Mutation and other sources of variation among individuals, as well as the evolutionary forces that act upon them, alter populations and species. This combination of processes has led to the world of life we see today. Q: Natural selection cannot create new variations in organisms - these new variations must be created by what, which are usually associated with some sort of abnormality? Choices: - radiation - infection - pollution - mutation A:
mutation
Q: Answer the following question given this paragraph: The alkaline earth metals include beryllium, magnesium, calcium, strontium, and barium. Strontium and barium react with air and must be stored in oil. Q: Beryllium, magnesium, calcium, strontium, and barium are classified as what type of metals? Choices: - alkaline aligned metals - acid earth metals - alkaline support metals - alkaline earth metals A:
A: alkaline earth metals
Question: Answer the following question given this paragraph: The boiling point of a solution is higher than the boiling point of the pure solvent, but the opposite occurs with the freezing point. The freezing point of a solution is lower than the freezing point of the pure solvent. Think of this by assuming that solute particles interfere with solvent particles coming together to make a solid, so it takes a lower temperature to get the solvent particles to solidify. This is called freezing point depression. The equation to calculate the change in the freezing point for a solution is similar to the equation for the boiling point elevation:. Q: The boiling point of a solution is higher than the boiling point of the pure solvent, but the opposite occurs with this? Choices: - dissolving point - evaporation point - liquidity point - freezing point A:
Answer: freezing point
*Question*
Answer the following question given this paragraph: 2.11 EL NINO Introduction: Consider the physical dynamics of the oceans. WOW! That sounds like trouble! What do "physical dynamics" mean? It sounds hard and boring. Not to fear. Though it may be boring to some of you, it should not be too hard. What is meant by "physical dynamics"? Physical refers to something that is observable and measurable. Dynamics are the way things work. So, the physical dynamics of the ocean refer to the measurable, observable ways that the ocean works. Not so bad, right? The physical dynamics of the ocean include things like tides, temperature, wave action, ocean currents, salinity (concentration of salt), and ocean depth. The physical dynamics of the ocean are all abiotic factors. It should not be surprising to you that the abiotic ocean factors (the physical dynamics) affect the ocean's biotic factors, i. the organisms that live in and around the ocean. We often hear the term "El Nino" but few of us really understand what it means or how it affects us. El Nino is a physical phenomenon of the ocean that has a significant impact on both ocean life and human life. In this assignment you will describe El Nino and its impact on the Earth's biosphere. Assignment: Using the Internet, find information related to El Nino. There are a multitude of Internet sources; you will probably find more information than you can possibly use. Using the information from at least THREE different Internet sources, write a THREE page, type written, double spaced essay that answers the following FOUR questions: 1. What are oceans currents? What are tides? Describe the ocean currents and tides, what they are; what causes them, where they normally flow, etc 2. What is El Nino? Describe what it is and what causes it. How does it affect ocean currents and tides? Water temperature? Other abiotic factors? 3. Q: Name the physical phenomenon of the ocean that has a significant impact on both ocean life and human life. Choices: - las nino - el nieto - el pino - el nino A:
**Answer**
el nino
Answer the following question given this paragraph: Q: The volume of blood each ventricle pumps per minute is called what? Choices: - trauma output - blood output - brain output - cardiac output A:
cardiac output