Attempig to pull an all-nighter and get all my work done. Please help. I'll give brainliest. What kind of data do seismometers provide for seismologists?
track movements of magma in the Earth's mantle
time of earthquake, magnitude and velocity, and type of seismic waves
location, quantity and time of damage created by earthquake
when tsunamis caused by quakes will strike coastal areas

Below

Explanation:

time of earthquake, magnitude and velocity, and type of seismic waves

location, quantity and time of damage created by earthquake

answer: your mm

explanation:

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms