[Q]: What is the missing first step of the following process: - The particles remove small pieces of the rock each time they touch the rocks - The particles continue to hit, brush against, or grow against the rocks - The rock eventually is broken apart by this contact - The pieces of the rock are now small rocks - The rock pieces are worn away into smaller and smaller pieces by the same forces -
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[A]: Particles in the environment interact with rocks

input: Please answer the following: What is the missing first step of the following process: - These substances rise into the high atmosphere - They react with water and oxygen - This creates a more acidic rain - The rain with the high acid content falls.
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output: Chemicals like sulfur dioxide and nitrogen are released into the air

Please answer this: What is the missing first step of the following process: - The water comes into contact with the rock below - The rock over the years carves through the rock - The space in the rock becomes larger and forms into a cave - As more rather rushes through the cave becomes a cavern.
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Answer: Water from the surface seeps below the soil

Problem: What is the missing first step of the following process: - The hypothalamus in the brain sends a message to the body - Sweat glands in the skin receive the message - The sweat glands start combining water and chemicals to make sweat - The sweat leaves the skin through pores.

A: The body's temperature increases over 98.6 degrees F

Problem: Given the question: What is the missing first step of the following process: - Food is squeezed down the esophagus when you swallow - Acid and enzyme in the stomach break the food down - Releases nutrients - Food then pumped into small intestine - Fluid and enzymes from liver and pancreas pumped into small intestine - Help break food into smallest molecules - Nutrients pass through wall of small intestine - Nutrients absorbed into blood stream - Unused materials passed into large intestine to become fecal matter.
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The answer is:
An enzyme in saliva begins to break down carbohydrates

Problem: What is the missing first step of the following process: - Then while gathering of their food, they make wax, which is the building block of their bee hive - Bees make food called honey - They use a sticky, glue-like substance called propolis as a binding to hold their hives together - Bees produce all of the building blocks to build their hive in their own body -

A:
Bees go out during the day and gather food