Ok, so the circulatory system in plants and animals is like a method of transport. Both plants and animals use this to transport waste and nutrition.
-Agarvated
(hope this helps, have a great day!)
Litmus paper is an indicator that changes color to identify the acidity or basicity of a certain substance. This changes color from blue to red for acids. Since given the same concentration of the compounds, the number of H⁺ in H₂SO₄ is approximately twice that of HCl.
Therefore, fewer drops of H₂SO₄ will be required in order to change the color of the litmus paper.
Atmospheric properties, tectonic plates... there are multiple.
