[Q]: What is the missing first step of the following process:  -  The light energy is used to convert carbon dioxide - The plant uses nutrients in the soil - The plant uses carbon dioxide in the air to produce glucose - The plant uses the glucose to give itself energy - Oxygen is released as a by product.
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[A]: Light energy is absorbed by chlorophyll in a plant


[Q]: What is the missing first step of the following process:  -  Bloodstream - Cells in the body are attacked - Cells are killed - Different kinds of sickness are formed.
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[A]: Bacteria enters the body


[Q]: What is the missing first step of the following process:  -  The water will turn into water vapor - Collect the water vapor - Allow the water vapor to cool - The water vapor will turn into liquid water - The salt will be separated from the water.
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[A]: Boil salt water


[Q]: What is the missing first step of the following process:  -  The bird collects twigs and other refuse - The bird makes a flat base with twigs - The bird makes sides with twigs and other things - The bird adds softer material to the inside - The nest is done.
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[A]:
The bird picks a tree