Q: What is the missing first step of the following process: - Water is absorbed through roots - Chloroplast cells in leaves contain chlorophyll - Chlorophyll absorbs energy from sunlight - Energy splits water molecules into hydrogen and oxygen - Oxygen gets released into atmosphere - Hydrogen and carbon dioxide used to create glucose - Glucose is food for plants.
A: Carbon dioxide passes through stomata in the leaves

Q: What is the missing first step of the following process: - A pocket of low pressure air is created near the surface of the ocean - Warm air from outside areas pushes into the low pressure area - The warm air keeps rising and forms clouds - The wind is getting fed moisture that evaporates from the ocean - This moisture causes the swirling air and clouds to grow bigger - As it gets bigger the wind rotates faster.
A: Warm water floats up from the ocean

Q: What is the missing first step of the following process: - The egg hatches into a baby bird - Baby bird eats - Grows into an adult bird - The bird finds a mate - The pair build a nest - The birds lay eggs.
A: A bird lays an egg

Q: What is the missing first step of the following process: - Is trapped - Plant also takes in water and carbon dioxide from the environment - The plant forms glucose - The plant releases oxygen into the atmosphere.
A:
Sunlight strikes the chlorophyll molecules in the plant