Geography, 19.11.2020 01:30 aklilrodowx1q5
How do earthquake (seismic) waves allow scientists to determine the composition of Earth layers?
Question 20 options:
A The waves are blocked, showing the layers are solids.
B The waves are shortened, showing the layers are made of the same material.
C The waves are lengthened, showing that the mantle is made of water and salt.
D The waves are traveling at different speeds, some bend or refract, the shadow zone doesn't record any s waves, showing the layers have different compositions.
Answers: 2
Geography, 23.06.2019 00:30
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.
Answers: 3
Geography, 23.06.2019 01:00
Which anatomical feature would you expect to find in the fossil remains of a nocturnal species?
Answers: 3
How do earthquake (seismic) waves allow scientists to determine the composition of Earth layers?
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