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Ann [662]
2 years ago
5

Is mixing sand a gravel a physical or chemical change?

Biology
1 answer:
gtnhenbr [62]2 years ago
4 0

Answer:

I believe it's a physical change?

Explanation:

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The fossil record is testament to extinct fauna no longer present on Earth. Certain areas of the planet have always had high spe
prohojiy [21]

Answer: Option (1)

Explanation:

The extinction event played an important role in the creation of new diverse life forms on earth. After an extinction event, both globally and locally, more than 75% of animal species gets vanish and the only those highly resistant life supporting organisms survive and with due course of time, they undergoes evolution, thereby bringing changes to the existing life forms. This is how they initiates and helps in the increasing species diversity.

Thus, the correct answer is option (1).

7 0
3 years ago
When a counterfeit detection pen is used on an authentic bill, what color does it turn?
garik1379 [7]
If the bill is counterfeit and the paper is wood-based, the iodine in the pen solution will react with the starch and leave a dark brown or black mark.
7 0
3 years ago
What evidence did Mendel find that supported his law of independent
inn [45]

Answer:

It's B

Explanation:

Law of independent assortment stated that individual heredity factors assort independently during gamete production. the evidence that Mendel find that supported his law of independent assortment is : different traits are passed on independently of each other

3 0
3 years ago
Should employers be able or not be able to check their candidate’s social media during the hiring process? If so list 5 reasons
Anettt [7]

Answer:

yes

Explanation:

1. shows the type of person they are more than the interview can,  if they're the type to post party pics or family pics says a lot.

2. it's public so they have the right.

3. a good employee shouldn't have anything to hide.

idk another 2 reasons why lol but theres 3

6 0
3 years ago
Which of the following best describes succession?
Gwar [14]

i think it is B or A they make the more sense hope this helps ✌

8 0
3 years ago
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