What is the missing first step of the following process:  -  Sediment builds up over the remains - The remains decompose, leaving only trace amounts - The remaining parts over the years are replaced with mineral - A fossil is formed -
Ans: Animals and plants die in soft soil or mud

What is the missing first step of the following process:  -  Under the right conditions it can develop further and start to spin around a low-pressure center - If it develops it&#x27;s classified as a &#x27;tropical cyclone&#x27; or &#x27;tropical depression&#x27; - If the system strengthens and wind speeds rise past 39 mph, the system is dubbed a &#x27;tropical storm&#x27; - If the pressure in the center drops even further and the winds really pick up and forms a clearly defined &#x27;eye&#x27; it&#x27;s a hurricane -
Ans: A hurricane usually starts as an organized thunderstorm activity that stretches at least 100 miles across and maintains its identity for more than 24 hours

What is the missing first step of the following process:  -  Partake in activities - Bring out the cake - Sing 'Happy Birthday!' - Blow out the candles - Eat the cake - Open the presents -
Ans: Begin the party

What is the missing first step of the following process:  -  Sulfur in the coal combines with oxygen to form sulfur oxides - The sulfur oxides are released into the atmosphere - The sulfides combine with oxygen in the atmosphere to form sulfur trioxide - The sulfur trioxide reacts with water in the atmosphere to form sulfuric acid, a very strong acid - The sulfuric acid makes the rain acidic -

Ans: Coal is burned