uhhhhh I think that its A
I believe that the seismograph shows the difference of time between the arrival of the two types of waves and this can be read right off the seismograph recording. Also, to get the distance of the earthquake from the recording spot one can derive the average velocity from Vp x Vs/Vp-Vs=km/sec x difference in time of arrival of the two equals the distance to the epicentre, This is where Vp = velocity of P wave and Vs = velocity of S waves.
Answer:
A, B and D are correct
Explanation:
1 is an autotroph because no arrows point towards it, 4 is a decomposer because no other organisms are consuming it.
1 gets carbon dioxide from the soil and the atmosphere, 4 gets carbon dioxide from dead organisms.
1 is a producer because it doesn't consume any organisms, 4 is a consumer because it gets its energy from organisms.
Answer:Their carbon skeletons are held together by covalent bonds
Explanation:They form the cells of an organism and perform the chemical reactions that facilitate life
