Problem: What is the missing first step of the following process: - The animal finds or builds a suitable place to hibernate where they can stay warm and protected - The animal moves into their den - Their heart rate and breathing slow down to conserve energy - They emerge from the den when the weather is warming up again.

A: An animal eats a lot of food to fatten up

Problem: Given the question: What is the missing first step of the following process: - Put the pot over a source of heat - Turn the heat on - Wait for a few minutes - Begin to observe small bubbles in the water - Wait until the water starts to bubble a lot - Wait until you can see steam rising from the water - Turn the heat source off - Take the pot off of the heat source.
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The answer is:
Add water to a pot

input question: What is the missing first step of the following process: - Over time, more sediment piles on top - The resulting heat and pressure transforms the organic layer into a dark and waxy substance known as kerogen - Left alone, the kerogen molecules eventually crack - The molecules break up into shorter and lighter molecules composed almost solely of carbon and hydrogen atoms - It will turn into either petroleum or natural gas -???
output answer: Dead organic material accumulates on the bottom of oceans, riverbeds or swamps, mixing with mud and sand

What is the missing first step of the following process: - These pores are called stomata - Water is absorbed by the roots - It passes through vessels in the stem on its way to the leaves - Sunlight is absorbed by a green chemical in the leaves.
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Answer: Carbon dioxide from the air passes through small pores (holes) in the leaves

Q: What is the missing first step of the following process: - The earth changes energy from the sun into heat - Heat rises from the ground - Greenhouse gas molecules in the atmosphere prevent the heat from going into space - The temperature of the earth increases - The temperature continues to rise and melts the polar ice caps - The temperature rises even faster.
A: Greenhouse gases are released into the air by human activities

[Q]: What is the missing first step of the following process: - As the plates move, they exert a great force - When the force is large enough, the crust breaks - The stress is released as energy - The energy moves through the Earth in the form of waves - We feel the earthquake -
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[A]:
Plates on the Earth's crust move slowly past each other