Why is petrified wood considered a fossil? Petrified wood was part of a plant that has been changed into rocks.
Petrified wood is can be burned to make create energy.
Petrified wood is dense like a fossil.
Petrified wood contains minerals that are only found in fossils.

Petrified wood was part of a plant that has been changed into rocks.

Explanation:

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it can be changed into rocks

Explanation:

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a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.