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AleksandrR [38]
4 years ago
6

A large white and gray log that smells like pine is burned in a fire pit. After being completely burned, all that remains of the

log is a small pile of soft white-gray ashes that no longer smell of pine. Describe the evidence that a chemical change has occurred.
Biology
2 answers:
netineya [11]4 years ago
6 0

Answer:While the pile of ashes and log have similar colors, the change in size, odor, and hardness, and the difference in combustibility indicate that a chemical change has resulted in a substance with a different identity. Furthermore, the ashes cannot be converted back into a log.

Elis [28]4 years ago
4 0

A chemical change has occurred because the wood has turned into a substance that can't be changed back to it's original form. The wood has turned to ash, chemical changes are non reversible.

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We use many types of natural resources for energy. Identify each type of natural resource as renewable or nonrenewable.
Fed [463]

Answer:

Renewable resource: Sunlight, water, wind,

Norenewable: coal, natural gas, oil

Explanation:

Hope this helps

7 0
3 years ago
BRAINLIESTTTT ASAP!!!
katovenus [111]
Can I have the brainliest?
positive impacts
Animals can be engineered to require less food, grow quicker, and leave behind less evironmentally damaging waste.
-Animals can be engineered to be more resistant to harmful and painful diseases.
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-Animals can be engineered to produce certain substances that offer a new source of medicine.
-Animals can be engineered to reproduce much faster.

negative impacts.

It is unethical.
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-Some consumers are complaining that the animal drug rules do not regulate genetically modified animals properly.
-This process is potentially dangerous and can be very harmful.
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3 0
3 years ago
The most common way for genes to be regulated is
MrMuchimi

Answer:   The most common way to regulate gene expression is at the transcription.

Explanation:

thats all I know

4 0
3 years ago
If the battery in the circuit above is 24 v and the resistance is 12ohms what is the current i
Debora [2.8K]

Answer:

2 Ampere

Explanation:

According to Ohm's Law

V=IR

where V is voltage I is current and R is resistance

24=I(12)

I=24/12

I=2 A

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Vladimir [108]

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C

Explanation:

8 0
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