Question

1/ For a hypothesis to be accepted, it must _____.

a. be shown to be correct through a series of quantitative tests

b. be accepted by the top three experts in the field

c. be first published in a scholarly article

d. be correct 95 percent of the time

2/ In which decade did upper-air balloon observations of temperature, humidity, and pressure provide the first conceptual three-dimensional view of the atmosphere?

a. 1920s

b. 1940s

c. 1960s

d. 1980s

3/If we weight a column of air 1 square inch wide, extending from the average height of the ocean surface (sea level) to the "top" of the atmosphere, it would weigh _____.

a. 1 pound per square inch

b. 300 millibars

c. nearly 14.7 pounds per square inch

d. approximately 100 inches of mercury

4/ The lowest layer of the atmosphere that contains circulating air extending upward from Earth's surface is called the _____.

a. thermosphere

b. terrestrial zone

c. mesosphere

d. troposphere

Answer 1

(1) A hypothesis is an explanation proposed for a physical phenomenon. For a scientific hypothesis, scientific methods are to be used to test it. In general, hypothesis is regarded as a trial solution to a problem or proposed reason for a physical phenomenon. It is also called as an educated guess. Once the guess is done, it will be further studied by means of general observations and published as an article and will be utilized for further research. So, the correct option is (c). (2) In 1940s upper-air balloon observations of temperature, humidity, and pressure provided the first conceptual three-dimensional view of the atmosphere. Correct option is (b). (3) If we weight a column of air 1 square inch wide, extending from the average height of the ocean surface (sea level) to the "top" of the atmosphere, it would weigh nearly 14.7 pounds per square inch. Correct option is (c). The lowest layer of the atmosphere that contains circulating air extending upward from Earth's surface is called the troposphere. Correct option is (d).