Q: While some climate regions have multiple layers, arid regions are poor for development of what? Read this paragraph and choose the correct option from the provided answers: Not all climate regions develop soils. Arid regions are poor at soil development. Not all regions develop the same soil horizons. Some areas develop as many as five or six distinct layers. Others develop only a few. Choices: - rain - plants - minerals - soil A:
soil

Q: A pulley changes the direction of the force t exerted by the cord without changing its what? Read this paragraph and choose the correct option from the provided answers: automobile axle drives a wheel, which has a much larger diameter than the axle. The MA is less than 1. (c) An ordinary pulley is used to lift a heavy load. The pulley changes the direction of the force T exerted by the cord without changing its magnitude. Hence, this machine has an MA of 1. Choices: - longitude - latitude - position - magnitude A:
magnitude

Q: How many different amino acids make up proteins. Read this paragraph and choose the correct option from the provided answers: There are 20 amino acids that make up proteins. With three bases per codon, there are 64 possible codons. This is more than enough to code for the 20 amino acids plus start and stop signals. You can see how to translate the genetic code in Figure below . Start at the center of the chart for the first base of each three-base codon. Then work your way out from the center for the second and third bases. Choices: - 14 - 25 - 30 - 20 A:
20