Consider a seafloor spreading zone creating 1 centimeter of new crust over its entire 1000 kilometers length every year.
a) how many square kilometers of surface will this create in 100 million years? express your answer in km squared
b) what fraction of earth's surface does this constitute?

Read the following quote from the nature conservancy, “the 3 billion people who live in poverty around the world will be hardest hit by climate change. the poor are more dependent on natural resources and have less of an ability to adapt to a changing climate. diseases, declining crop yields, and natural disasters are just a few of the impacts of climate change that could devastate the world’s most vulnerable communities.” from this quote, what group of people is most vulnerable to climate change? those who depend on industrialized nations people who are able to adapt to changing conditions people living in central america people who are living in poverty

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

The net below can be folded to form a square pyramid. la2419"100what is the surface area of the pyramid? 190.8 square inches| 0 217.8 square inches300. 6 square inches354.6 square inches