Question

why are a variety of instruments needed to measure change in the climate system?
a. a different type of instrument is needed for each different climate.
b. the climate system involves a number of different factors that are measured differently.
c. climate is determined over a number of years, rather than a short period of time.
d. different areas have developed different instruments to measure climate change.

please select the best answer from the choices provided

○ a
○ b
○ c
○ d

Explanation:

• Option A: Different climates don't each need a unique instrument; the factors within a climate system are what matter, so A is incorrect.
• Option B: The climate system has factors like temperature, precipitation, wind, etc., each measured by specific instruments (e.g., thermometers for temp, rain gauges for precipitation). So multiple instruments are needed for these different factors, making B correct.
• Option C: The time scale of climate determination (long - term) doesn't relate to why multiple instruments are needed, so C is incorrect.
• Option D: The development of instruments by different areas isn't the reason for needing multiple instruments to measure the climate system's factors, so D is incorrect.

Answer:

B. The climate system involves a number of different factors that are measured differently.