13. What is the observed trend in Earth's temperature over the past 100 years? a. Steady decrease b. No change c. Cyclical fluctuation d. Overall increase 14. Which of these is considered a short-term climate cycle? a. Ice ages b. Seasons c. Continental drift d. Mountain formation 15. What role do ocean sediments play in climate science? a. They only record current temperatures b. They provide evidence of past climates c. They have no scientific value d. They only show sea level changes

Question

13. What is the observed trend in Earth's temperature over the past 100 years? a. Steady decrease b. No change c. Cyclical fluctuation d. Overall increase 14. Which of these is considered a short-term climate cycle? a. Ice ages b. Seasons c. Continental drift d. Mountain formation 15. What role do ocean sediments play in climate science? a. They only record current temperatures b. They provide evidence of past climates c. They have no scientific value d. They only show sea level changes

Answer 1

13. d. Overall increaseOver the past 100 years, the observed trend in Earth's temperature has been an overall increase. This is commonly referred to as global warming or climate change.14. b. SeasonsSeasons are considered a short-term climate cycle. They are caused by the tilt of the Earth's axis and its orbit around the Sun, resulting in changes in the amount of sunlight received by different parts of the Earth throughout the year.15. b. They provide evidence of past climatesOcean sediments play a crucial role in climate science as they provide evidence of past climates. By studying the composition and layers of ocean sediments, scientists can reconstruct past temperatures, ocean currents, and other climate-related information. This helps in understanding the long-term climate patterns and changes that have occurred over geological timescales.

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