In an Attempt to Determine the Source of a Growing

question 1

Multiple Choice

In an attempt to determine the source of a growing plant's mass, van Helmont planted a willow seedling in a pot of soil. After 5 years, the willow weighed 76.8 kg, and the soil had lost 0.06 kg of weight. Only water had been added to the pot. Which conclusion should van Helmont have drawn?

• A) Plants get their mass from water.
• B) Plants get their mass from water and air.
• C) Plants get their mass from water and atmospheric CO₂.
• D) Plants get all or almost all of their mass from a source other than soil.

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Financing Agreement

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The act of renouncing or voiding a contract or agreement, especially by a party who was not in a position to legally enter into the contract initially, under conditions considered to be fair or just.

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A contract in which parties agree to settle disputes through arbitration rather than litigation in courts.