Which feature shortleaf pines resist fires?
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a. an ability to kill other woody plants around them
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b. a tendency to burn explosively
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c. a large, broad leaf that smothers fires
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d. a root structure that protects buds from fire

A root structure that protects buds from fire helps short-leaf pines resist fires

Option D

Explanation:

Short leaf pine plant in the struggle for existence under hot scorching fire has developed a root structure that protects the buds from fire. This type of pine is called a fire resistant plant as it survives in the canopy of other trees.

Frequent burns have made them resistant to this fire. This is a wonderful example of how some plants survive in this extreme condition where it has to undergo frequent burns.They can also adopt and survive in drought conditions.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times