which of the following would most likely be found in an academic research paper on the worlds food supply

ATI TEAS 7

English TEAS Practice Test

1. Which of the following would most likely be found in an academic research paper on the world’s food supply?

A. It is ridiculous that so many people in the world are hungry while others just throw away tons of uneaten food.
B. I have always believed that it is our moral duty as a people to provide food and clean water to those who do not have access to it, which is why I have made research of the food supply my life’s work.
C. Advances in agricultural technology over the past five decades have led to a steady increase in the global food supply, and the populations of many countries around the world are benefiting.
D. Poor people should appeal to their governments for help feeding their families.

Correct answer: C

Rationale: Option C is the most likely to be found in an academic research paper on the world's food supply because it presents a factual statement about advances in agricultural technology leading to an increase in the global food supply. This type of information is commonly featured in academic research papers as it highlights trends, developments, and impacts on global food systems. Options A, B, and D are more opinion-based or advocacy-oriented statements, which are typically not the focus of academic research papers. Academic research papers aim to present objective information, data-driven analysis, and scholarly insights rather than personal opinions or advocacy perspectives.

2. Which type of lens focuses parallel light rays to a single point?

A. Concave lens
B. Convex lens
C. Cylindrical lens
D. Plano lens

Correct answer: B

Rationale: A convex lens focuses parallel light rays to a single point by causing them to converge. This lens is thicker in the center than at the edges, which helps in converging the light rays. Convex lenses are commonly used for tasks like magnification and focusing due to their ability to bring distant light rays to a single focal point. Choice A, the concave lens, diverges light rays rather than converging them, making it incorrect. Choice C, the cylindrical lens, is designed to focus light along one axis rather than converging parallel light rays to a single point. Choice D, the plano lens, has no curvatures to bend or focus light rays, so it does not converge parallel light rays.

3. In the context of optical fibers, chromatic dispersion refers to:

A. The total internal reflection of light
B. The spreading of light pulses due to different colors traveling at slightly different speeds
C. The bending of light at the fiber core-cladding interface
D. The absorption of light by the fiber material

Correct answer: B

Rationale: Chromatic dispersion in optical fibers refers to the spreading of light pulses due to different colors (wavelengths) traveling at slightly different speeds. This phenomenon can cause the different components of a light pulse to arrive at the receiver at slightly different times, leading to signal distortion. Choice A is incorrect because total internal reflection refers to the phenomenon where light is reflected back into the medium it originated from when hitting the boundary at an angle greater than the critical angle. Choice C is incorrect as it describes the principle of light being guided within an optical fiber through total internal reflection at the core-cladding interface. Choice D is incorrect as the absorption of light by the fiber material does not relate to chromatic dispersion.

4. Which operation should be completed first in the expression 8 + 5 * 3?

A. Multiplication
B. Addition
C. Division
D. Subtraction

Correct answer: A

Rationale: The correct answer is 'Multiplication.' In the expression 8 + 5 * 3, according to the order of operations (PEMDAS), multiplication should be done before addition. PEMDAS stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). Therefore, the multiplication operation should be completed first, making 5 * 3 equal to 15, and then the addition operation should be conducted to get the final result of 8 + 15, which equals 23. Choices B, C, and D are incorrect because in this expression, multiplication takes precedence over addition, division, and subtraction according to the order of operations.

5. Which of the following is equal to 0.13 inches?

A. 0.013 inches
B. 1.3 inches
C. 0.13 inches
D. 13 inches

Correct answer: C

Rationale: The correct answer is C: 0.13 inches. When converting decimals to inches, the value remains the same. Choice A, 0.013 inches, represents a smaller value than 0.13 inches as it has an extra zero. Choice B, 1.3 inches, is incorrect as it is a larger value than 0.13 inches. Choice D, 13 inches, is significantly larger than 0.13 inches, making it an incorrect conversion.