PLS HELP ME TY Part A
Which statement is a central idea of the text?

A. Scientists usually work in laboratories.

B. Scientists work alone on their research.

C. Scientists work together and report their findings.

D. Scientists mostly work outdoors.

Question 2
Part B

Which detail from the text best supports the answer in Part A?

A. Experiments must be repeatable.

B. Variables change in different experiments.

C. Without sharing results, little progress is made.

D. Often, there is no correct answer in science.

the answer would be b i believe

the answer is c i took the test

answer seismograph;

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.