*Question*
Q: What will happen to sea levels due to increased global temperatures? Read this paragraph and choose the correct option from the provided answers: This increase in global temperature will cause the sea level to rise. It is also expected to produce an increase in extreme weather events and change the amount of precipitation. Global warming may also cause food shortages and species extinction. Choices: - Drop - reverse - surge - rise A:
**Answer**
rise

*Question*
Q: Alkaline earth metals are what color? Read this paragraph and choose the correct option from the provided answers: The alkaline Earth metals include all the elements in group 2 (see Figure below ). These metals have just two valence electrons, so they are very reactive, although not quite as reactive as the alkali metals. In nature, they are always found combined with other elements. Alkaline Earth metals are silvery grey in color. They are harder and denser than the alkali metals. All are solids at room temperature. Choices: - white - black - reddish orange - silvery grey A:
**Answer**
silvery grey

*Question*
Q: What causes cumulus clouds to grow upward? Read this paragraph and choose the correct option from the provided answers: Cumulus clouds are white and puffy. Convection currents make them grow upward and they may grow very tall. When they produce rain, they are called cumulonimbus. Choices: - moisture currents - gas currents - mantle currents - convection currents A:
**Answer**
convection currents

*Question*
Q: What do you call the regular changes in biology or behavior that occur in a 24-hour cycle? Read this paragraph and choose the correct option from the provided answers: Circadian rhythms are regular changes in biology or behavior that occur in a 24-hour cycle. In humans, for example, blood pressure and body temperature change in a regular way throughout each 24-hour day. Animals may eat and drink at certain times of day as well. Humans have daily cycles of behavior, too. Most people start to get sleepy after dark and have a hard time sleeping when it is light outside. In many species, including humans, circadian rhythms are controlled by a tiny structure called the biological clock . This structure is located in a gland at the base of the brain. The biological clock sends signals to the body. The signals cause regular changes in behavior and body processes. The amount of light entering the eyes helps control the biological clock. The clock causes changes that repeat every 24 hours. Choices: - cognitive rhythms - variable rhythms - sleep rhythms - circadian rhythms A:
**Answer**
circadian rhythms