The patterns that weather forms in an area over seasons and years is known as that region's ____________ Climate. There are only two different types of climates found on Earth: tropical and desert False. Climates change very slowly, over hundreds or thousands of years. True. Hundreds of millions of years ago, nearly the whole planet was covered with what? ice. Climatologists get clues about the climate of the past by studying what? There is more than one answer. Glaciers. True or False: Climate on Earth never changes False. Causes of Climate Change are a combination of natural and human forces. A volcanic eruption on Earth causes the temperature to drop. A volcanic eruption can cause a climate change that lasts a few years. Earth is currently experiencing a warming trend. Which of these are fossil fuels? Select all fossil fuels listed. oil. Is the Greenhouse Effect a completely bad thing? no. Through research and data, scientists have found that Earth's temperature has been increasing. What causes the ice bubbles found in samples by scientists? carbon dioxide. True or False: there is less carbon dioxide in the atmosphere now than there has been in the past 650,000 years. False. What are some signs of climate change? Choose all signs on the list. more precipitation overall. What is a glacier? a huge river of ice and snow that moves over land. Another greenhouse gas that is released by the decay of organisms found in glaciers is methane. Oceans cover approximately what percentage of our planet? 75%. As water heats up, the molecules do what?