Answer:
D) brevity
Explanation:
A test can be defined as an examination or quiz given to a student (pupil) during an academic calendar in order to measure or determine his or her intelligence. It is usually graded based on a set of defined grades or scores.
The key characteristics of a well-designed test includes the following;
I. Standardization: it is important that test is set based on certain criteria and acceptable rules within the education community and curriculum.
II. Reliability: the questions contained in a test should be credible and backed by correct answers.
III. Validity: the test questions should be genuine and authentic across board.
However, brevity simply means succinctness or conciseness i.e the test should be brief and very short in duration.
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Answer:
We need two types of environment for this experiment.
Explanation:
We need two types of environment to see the environmental effects on Caribbean reefs. In one environment we have to provide control and optimum environmental as well as biological conditions such as pH and no pollutants etc while on the other hand, we placed the Caribbean reefs in the open environment where environmental conditions are not suitable such as low pH, pollutants, algal blooms etc occurs. So we can see that the first environment have high growth rate of Caribbean reefs whereas the second environment has lower growth of Caribbean reefs due to low pH of the ocean water which prevent the growth of reef's skeleton so the conclusion of this discussion is that Caribbean reefs is negatively affected by environmental conditions.
A species must have an appropriate food source, not have too many predators feeding on them, and have a suitable climate for which the species is adapted to.
The correct option is D.
When one is talking about comparing, one is referring to noticing the distinctions or differences between two things. In the question given above, sound quality is the factor that is been compared. To compare sound quality of piano, two pianos are needed. The sound quality is compared by playing the same note on two different pianos at the same volume and then decide on the piano whose sound quality is better.