Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm vertical distance from the bottom of the trough to the top of the crest. Which statement best describes the energy in Henri and Geri’s waves?

A. Henri’s wave has a higher amplitude and more energy.
B. Henri’s wave and Geri’s wave have the same amplitude and the same energy.
C. Henri’s wave and Geri’s wave have the same amplitude, but Geri’s has more energy.
D. Geri’s wave has a higher amplitude and more energy.

What role did the waterways of europe play in development of europe's economy

How did the lab activities you answer the lesson question: what effect does plate movement have on geologic events and structures at earth’s surface? what did you learn from conducting this lab?

Look at the data above. provide an explanation for europe’s projected population decrease by the year 2050. (i'm doing this for future kids) the answer is : the percentage of people over the age of 65 and under the age of 15 in europe is currently the same at 16% each. therefore, the majority of the population is between the ages of 16 and 64. in forty years from now, in 2050, a greater percentage of the population will be over the age of 65. europe also has a relatively long life expectancy of 75 years. this, combined with a low birth rate means that by 2050 europe’s population will actually be less than it is today.