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yarga [219]
3 years ago
13

Besides providing food and lumber, some trees are valuable natural resources because they contain substances that help make ____

_. A. ore B. medicines C. petroleum D. silicon wafers
Physics
2 answers:
kondaur [170]3 years ago
6 0
Medicines would be your answer


antiseptic1488 [7]3 years ago
4 0

The correct answer is B. Medicines

Explanation:

Trees are valuable natural resources used to obtain food through edible fruits, roots, etc and also to obtain lumber that is used to build structures, furniture, among others. Besides this, trees are valuable because it is possible to obtain medicinal substances from these. For example, willow bark can be used to treat fever, and pain because the substance in it acts similarly to aspirin. This makes thousand of tree species to be used in the process of creating medicines. Thus, besides food and lumber trees provided substances that help make medicines.

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A flatbed truck is carrying an 800-kg load of timber that is not tied down. The maximum friction force between the truck bed and
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Acceleration a ≤ 3 m/s^2

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Explanation:

For the truck to accelerate without losing its load.

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