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defon
3 years ago
15

If scientists determine the age of a rock to be three billion years old, what else do they know? A) the rock came from outside t

he solar system B) the rock was part of a comet C) the Earth is at least three billion years old D) the Earth is younger than three billion years old
Biology
2 answers:
Burka [1]3 years ago
8 0
I think it might be C.
jonny [76]3 years ago
5 0
C) the earth is at least billion years old

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In the future, all of the following factors are likely to contribute to an increased demand for rice, corn and wheat except:
dsp73

Answer: d. migration away from productive growing areas

Explanation:

The rice, corn and wheat are the basic food crops. These crops are used for making several dishes their flour as well as the grains of rice and corn are eaten when cooked. These three crops are necessary to be grown on large scale to meet the basic  food requirements of the large growing population worldwide. The plant roughage of these three crops can be used to make biofuels. These are used as a fodder crops to feed poultry and cattles for meat harvest.

The demand will also increase when one is migrated to an unproductive region. However, the increased demand is due to decreased supply and not because of increased consumption hence, it will not directly contribute to increase in demand of crops.

4 0
3 years ago
A student made a model of an onion skin cell she viewed
Komok [63]

If a student made a model of an onion skin cell using a microscopic magnification scale of 500:1 and the length of the modeled cell is 15 cm, the real cell's length would be 0.03 cm.

The scale is 500:1. This means that the dimension of the real cell without being magnified under the microscope would be 1/500.

Thus, if the length of the cell under the microscope is 15 cm. This length has been multiplied by 500. In order to get the real length, it must be divided by 500.

              15 x 1/500

                             = 0.03 cm

More on microscopic magnification can be found here: brainly.com/question/14668612

6 0
3 years ago
The nurse is conducting a routine risk assessment at a prenatal visit. which question would be the best to screen for intimate p
AleksAgata [21]
<span>The nurse could ask about how disagreements or arguments look between the woman and her partner, if they feel scared or intimidated, or if they feel as if they've been put down a lot by their partner. If the patient seems open and cooperative, the nurse could even ask directly if she has been a recipient of violence at the hands of her partner.</span>
6 0
4 years ago
If you experimentally increase the concentration of k+ inside a cell while maintaining other ion concentrations as they were, wh
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The resting potential of the neuron would be reduced from -70mV. This is because increasing K+ ions inside the cell reduced the electro negativity of the inside of the cell in comparison to the outside. Therefore, the reaching the potential to induce an impulse would be easier but then the impulse would be weaker than normal.

4 0
3 years ago
What happens when water warms up?
Brums [2.3K]
Hey frnd

As water gets warmed up ot expands.

Hope this helps u frnd.
5 0
4 years ago
Read 2 more answers
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