Which rapid changes can be caused by storms? OPTIONS:
- landslides and flooding
- flooding and earthquakes
- landslides and volcanoes
- volcanoes and earthquakes
A: landslides and flooding

Why is some food dehydrated for astronauts to eat in space? OPTIONS:
- to make the food less messy to eat
- to preserve the food for extended flights
- to increase the food's nutritional content
- to keep the food from floating off the plate
A: to preserve the food for extended flights

Which two processes could result in the formation of high mountains with well-rounded peaks? OPTIONS:
- volcanic eruptions and global warming
- earthquakes and tidal activity
- collision of crustal plates and erosion
- production of greenhouse gases and weathering
A: collision of crustal plates and erosion

Which technique will researchers studying the inheritance patterns of various disorders most likely use? OPTIONS:
- cladogram
- DNA fingerprinting
- gel electrophoresis
- chromosomal analysis
A:
chromosomal analysis