How did disease and medical practices impact the life expectancy of those living in England?

Can anyone find the answers to the lab 2: exercise 1 bathymetric charts questions for sandy harbor so that i can check for accuracy?

Which factors add to the greenhouse effect and are caused by human activities?

[ou.01jthe greatest speed with which any physical object moves is 300,000 km/soundsec. which of the following has a speed of 300,000 km/sec? a.light in water b.light in vacuum c.sound in air. d. sound in water