Is granite plutonic or volcanic? Basalt and obsidian are volcanic rocks; granite is plutonic. Ask students how they can determine this. The answer is: plutonic rocks (such as granite) cool slowly in a relatively undisturbed environment permitting the growth of large mineral crystals which can easily be seen by the unaided eye. Which of the […]
What are the positive and negative controls in Elisa?
What are the positive and negative controls in Elisa? Positive control. Use either an endogenous soluble sample known to contain the protein you are detecting or a purified protein or peptide known to contain the immunogen sequence for the antibody you are using. Negative control. This is a sample that you know does not express […]
Why do sirens sound different coming towards you than as they go away?
What is the temperature range for the troposphere?
What is the temperature range for the troposphere? As the density of the gases in this layer decrease with height, the air becomes thinner. Therefore, the temperature in the troposphere also decreases with height in response. As one climbs higher, the temperature drops from an average around 62°F (17°C) to -60°F (-51°C) at the tropopause. […]
Which of the following is a good example of visual encoding?
Will a fast moving person feel heavy?
Will a fast moving person feel heavy? Answer: So, if you move faster, and as you move faster, you generate more Electromagnetic Energy, then as you move faster, you push more Dark Energy away from yourself! And Dark Energy pushes harder against you, so you get heavier! How does speed affect weight? Weight is the […]
What are the four ethical principles that guide psychological research?
What are the four ethical principles that guide psychological research? Each of these basic principles of research ethics is discussed in turn: PRINCIPLE ONE: Minimising the risk of harm. PRINCIPLE TWO: Obtaining informed consent. PRINCIPLE THREE: Protecting anonymity and confidentiality. PRINCIPLE FOUR: Avoiding deceptive practices. PRINCIPLE FIVE: Providing the right to withdraw. Why is deception […]
How does increasing fuel mileage help the environment?
How does increasing fuel mileage help the environment? Increasing fuel efficiency means vehicles burning less gas and sending less global warming pollution into the atmosphere. How does increasing fuel economy in vehicles affect CO2 emissions? Improving vehicle fuel economy would mean lower CO2 emissions, estimated at 0.5 Gt/year by 2025 and 1.5Gt/year by 2050, with […]
Which of the following reduces energy loss due to conduction convection and radiation?
Which of the following reduces energy loss due to conduction convection and radiation? Thus, we can conclude that out of the given options, thermos bottle reduces energy loss due to conduction, convection, and radiation. Which type of heat source is the cleanest? According to the DOE, pellet stoves are the cleanest solid fuel heating option […]
What swell is considered rough?
What swell is considered rough? 2.5 – 4 Which is the roughest ocean? The South China Sea and East Indies, eastern Mediterranean, Black Sea, North Sea, and British Isles are the most dangerous seas in the world, with the greatest number of shipping accidents in the last 15 years, according to a report released by […]