What do slinky waves and seismic waves have in common?
O A. They both always occur as transverse waves.
B.
They both always occur as longitudinal waves.
OC. Both are electromagnetic waves.
D.
Both exhibit the same particle-to-particle interaction.
E.
Both are mechanical waves.

Iknow the answer is a but i don't know why

1) this is the structure in the cell nucleus that houses a cell's genetic information

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide