Question: What is the missing first step of the following process: - Ocean water pulls sand off of beaches - Ocean water breaks rocks off of cliffs - Ocean water carries sand and rocks into the ocean - Sand and rocks go to other land or the bottom of the ocean.
Answer: Ocean waves hit land

Question: What is the missing first step of the following process: - Heating element heats water - Pump forces water up in pipes connected to spinning paddles - The forced water makes paddles spin like a sprinkler - Water comes out of small holes in paddles - Water is collected and used again until dishes are clean - Water is drained through a filter - Filter collects particles of food - Water was so hot that it evaporates for dry dishes.
Answer: Cold water taken in through a hose to the bottom

Question: What is the missing first step of the following process: - Rain picks up carbon dioxide as it falls to earth - The rain falls on the soil over the limestone - The carbon dioxide in the rain washes through the soil - The carbon dioxide turns into acid - The acid in the rain gets to the limestone below the soil - The acid dissolves the limestone - Acid continues to erode the limestone with more rain over time - The eroded limestone sometimes forms caves.
Answer:
Limestone is located under the soil