input: Please answer the following: What is the missing first step of the following process: - The roots of the growing plants start to break up the rock - The plant acids dissolve the rock - The rock is broken down into smaller pieces - Erosion begins.
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output: Plants start growing on or near the rocks

Please answer this: 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.
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Answer: Cold water taken in through a hose to the bottom

Problem: What is the missing first step of the following process: - Aluminium cans are then collected and taken to a treatment plant - At the treatment plant the aluminium is sorted and cleaned - Readied for reprocessing - The aluminum cans go through a re-melt process - Turned into molten aluminium - The molten aluminum is made into large blocks called ingots - The ingots are sent to mills and are rolled out into thin sheets - The rolls are ready to be made into new aluminum products.

A: Aluminium cans are put into a recycling bin

Problem: Given the question: What is the missing first step of the following process: - Green house gases enter from the earth - Heat is trapped in atmosphere - Different things on earth are hotter - The overall planet is hotter.
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The answer is:
Suns heat enters atmosphere

input question: 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.???
output answer: Carbon dioxide from the air passes through small pores (holes) in the leaves

input question: What is the missing first step of the following process: - Bacteria start to divide and grow - The uncontrolled growth takes away resources from other cells - Other cells cannot function properly - We feel unwell - The growth and division of bacteria produce toxins - Toxins harm the body - The body tries to react to the toxins - The body's natural defenses can sometimes cause us to feel unwell.???
output answer:
Bacteria enter the body