What is the only living structure visible from space

2/6 of be by to 2/6 is to 24/72 ?

Computer models can scientists predict weather. some computer models can show the predicted path of hurricanes. what other events could a computer model warn us of? a) undersea earthquakes , tornadoes, and avalanches b) tornadoes c) avalanches d) undersea earthquakes

In a class of 20 students, what democratic form of governance makes the most sense