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Mice21 [21]
2 years ago
9

Which statement about heat and thermal energy is true? A. Scientists use both terms to describe how hot or cold something is. B.

An object’s heat can increase or decrease, but the object’s thermal energy is always the same. C. Objects possess thermal energy; heat is energy in transit. D. Thermal energy refers to the temperature of an object, and heat refers to how much energy an object possesses.
Biology
1 answer:
zysi [14]2 years ago
5 0

Answer:

D

Explanation:

Thermal energy is the energy that is generated and measured by heat.

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It is believed that weed killers like 2,4-D and 2,4,5-T may
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Herbicides are a broad category of pesticides that are used to get rid of undesirable plants like weeds and grasses that hinder the development and productivity of desired agricultural crops. Both 2,4-D and 2,4,5T are also known as 2,4-Dichlorophenoxyacetic acid and

  • Herbicides like 2,4-D and 2,4,5-T are also referred to as auxin-type herbicides or plant growth regulators. Auxins are hormones that affect cell division and elongation in order to control cell growth.
  • Auxins are required by plant cells in the proper concentration for growth and development. If auxin levels are too low, plant growth is not promoted at all, and if levels are too high, plant growth is excessively stimulated.
  • Most grasses are not killed by 2,4-D and 2,4,5 T, but broadleaf weeds are. It moves to the plant's meristems after being absorbed through the leaves.
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Thus, by promoting cell division, these compounds act as herbicides.

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