Take a look at this real data collected by a seismograph on May 27, 2020. Each row of the data represents a 15-minute span of time, beginning at 6:00 p. m. 23 lines, mostly straight with small bumps; many large spikes begin in the fourth minute of data on the 14th line and last for about two minutes

Describe the appearance of the data from the seismograph. At approximately what time did the largest earthquake occur?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted