Q: Earth's temperature will increase further as more of what colorfully nicknamed gases are put into the atmosphere? Read this paragraph and choose the correct option from the provided answers: Current Situation : Currently the heating effect of extra greenhouse gases (since the start of the industrial revolution) is equal to about . Thus the recent period has recorded parallel increases in concentration of carbon dioxide and average global temperature. As more greenhouse gases are put into the atmosphere the temperature will increase further. There are certain effects of a warmer Earth (discussed more in optional section), which could accelerate the process, even if no more greenhouse gases are put into the atmosphere (an unlikely prospect for the foreseeable future). Choices: - bluehouse gases - blue dioxide gases - green dioxide gases - greenhouse gases A:
greenhouse gases

Q: What do we call scientists who study and forecast the weather? Read this paragraph and choose the correct option from the provided answers: Did you ever have a picnic ruined by a surprise rainstorm? People often complain when the weather forecast is wrong. But in fact, weather forecasts today are much more accurate than they were just 20 years ago. Scientists who study and forecast the weather are called meteorologists . How do they predict the weather?. Choices: - Climate predictors - TV hosts - forecasters - meteorologists A:
meteorologists

Q: What is required for a decay chain to end? Read this paragraph and choose the correct option from the provided answers: We have talked about the activity and decay of individual isotopes. In the real world, there is a decay chain that takes place until a stable end-product is produced. For U-238, the chain is a long one, with a mix of isotopes having very different half-lives. The end of the chain resides in lead, a stable element that does not decay further. Choices: - stable half-life - unstable end-product - radioactive cascade - stable end-product A:
stable end-product