Which of the following is an example of the effect of human life of weather, climate, or other systems in Earth's atmosphere?
A) Clouds in the upper atmosphere are made of ice crystals, white lower clouds are made of water droplets
B) Hurricane Katrina devastated the city of New Orleans
C) The 2004 Indian Ocean Tsunami killed over 250,000 people
D) During the last ice age, the continental glaciers were biggest between 20,000 years ago and 18,000 years ago