Answer the following question given this paragraph: Hurricanes move with the prevailing winds. In the Northern Hemisphere, they originate in the trade winds and are blown to the west. When they reach the westerlies, they switch direction. So they travel toward the north or northeast. You can look at a map of hurricane tracks to see this happen ( Figure below ). Hurricanes may cover 800 km (500 miles) in one day. Q: What weather events move with the prevailing winds and originate in the trade winds in the northern hemisphere? Choices: - tsunamis - earthquakes - droughts - hurricanes A:
hurricanes
Answer the following question given this paragraph: Not so fast. The mesosphere is the least known layer of the atmosphere. The mesosphere lies above the highest altitude an airplane can go. It lies below the lowest altitude a spacecraft can orbit. Maybe that's just as well. If you were in the mesosphere without a space suit, your blood would boil! This is because the pressure is so low that liquids would boil at normal body temperature. Q: What atmospheric layer lies above the highest altitude an airplane can go and below the lowest altitude a spacecraft can orbit? Choices: - stratosphere - troposphere - thermosphere - mesosphere A:
mesosphere
Q: Answer the following question given this paragraph: An alkaline battery is a variation on the zinc-carbon dry cell. The alkaline battery has no carbon rod and uses a paste of zinc metal and potassium hydroxide instead of a solid metal anode. The cathode half-reaction is the same, but the anode half-reaction is different. Q: Deficiency of what is symptomized by nausea, fatigue and dizziness, and can be triggered by excessive sweating? Choices: - impurities - salts - calories - electrolytes A:
A: electrolytes
Question: Answer the following question given this paragraph: Many lakes are not natural, but are human-made. People dam a stream in a suitable spot. Water backs up behind the dam, creating a lake. These lakes are "reservoirs" ( Figure below ). Q: A man made lake is known as what? Choices: - Pond - Lake - Lagoon - resevoirs A:
Answer: resevoirs
*Question*
Answer the following question given this paragraph: Near the time of birth, the amniotic sac breaks in a gush of liquid. Labor usually begins within a day of this event. Labor involves contractions of the muscular walls of the uterus. With the mother's help, the contractions eventually push the fetus out of the uterus and through the vagina. Q: What helps push the fetus from the uterus during birth? Choices: - glands - tremors - Shaking - contractions A:
**Answer**
contractions
*Question*
Answer the following question given this paragraph: Thunderstorms form when the ground is really hot ( Figure below ). The air near the ground becomes very warm and humid. This is true in some locations in late afternoon or early evening in spring and summer. The warm air rises rapidly, which creates strong updrafts. When the rising air cools, its water vapor condenses. The updrafts create tall cumulonimbus clouds. Winds blow the cloud top sideways. This makes the well-known anvil shape of a cloud known as a thunderhead ( Figure below ). Water droplets and ice fly up through the cloud. When these droplets get heavy enough, they fall. This starts a downdraft. A convection cell develops within the cloud. A mature thunderstorm produces gusty winds, lightning, heavy rain, and hail. Q: What weather phenomenon is caused by strong warm updrafts from heated ground? Choices: - eruptions - currents - earthquakes - thunderstorms A:
**Answer**
thunderstorms