3. The abilities to dissolve in water and to conduct electricity are examples of A. natural properties.
B. chemical properties.
C. natural laws of matter.
D. physical properties.

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing