Earthquakes generate three types of seismic waves<span>: P (primary) </span>waves<span>, S (secondary) </span>waves<span> and surface </span>waves<span>, which arrive at </span>seismic<span> recording stations one after another. Both P and S </span>waves<span>penetrate the interior of the Earth while surface </span>waves<span> do not. Due to this, P and S </span>waves<span> are known as "body </span>waves<span>".
hope that helped</span>
Ooo im taking chem this semester and just around this subject,
water is neutral and <span>H2CO3cant act as b-l base soo </span>the answer is HCIO4(aq)
Potassium ions and sulfate ions.
<h3>Explanation</h3>
Start with the chemical equation for this reaction.
Sulfuric acid 
is a strong acid. Potassium hydroxide 
is a strong base. Acids neutralize base in aqueous environments to produce a salt and water.
That is:
Sulfuric Acid + Potassium Hydroxide → Potassium sulfate + Water
Rewrite the chemical equation as an ionic one. Take all strong electrolytes- including strong acids, strong bases, and soluble salts- apart as their comprising ions. Do not take water molecules apart. As a weak electrolyte, water molecules barely disassociate to produce ions.
Ions that are present on both sides of the equation by the same quantity do not take part in the net reaction. They are thus considered spectator ions.
- Potassium ions
- Sulfate ions
I believe the amount of heat energy required to raise the temperature of a unit mass of a material one degree is its heat capacity. The correct answer is C.
