B. Most species that have lived on earth are now extinct. Ap3x
Answer is c photosynthesis
I think the correct answer is option 3. CaCl2 is the compound that is an electrolyte when dissolved in water. An electrolyte is a substance that conducts electricity in solution. Calcium Chloride when in solution dissociates into ions which allows the flow of current in the solution.
A convergent plate boundary is formed when tectonic plates collide
Answer:
Gold and copper are example of alloy
Explanation:
