Geologists apply various methods to study the layers of the Earth. Which of the following is a method used to study the Earth's layers? ООО
O Scientists use seismic waves to map the atmospheric conditions above Earth's crust.
Scientists map seismic waves to determine the atomic structure of materials that lie beneath Earth's surface.
Scientists measure vibrations of Earth's surface using a compass (an instrument that is sensitive to Earth's magnetic field).
o Scientists measure the time it takes for seismic waves to reach a seismograph (an instrument that measures seismic waves).

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Heterogeneous mixture with larger particles that never settle is