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Paha777 [63]
3 years ago
11

In a presentation about measuring mass, one of your classmates states, "Two objects of the same size will always have the same m

ass.” Is this statement correct? Why or why not?
Biology
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer: The statement is not correct.

Reason:

If two objects have the same mass, their respective densities determine their volumes.

By definition,

density = mass/volume.

or volume = mass/density.

Therefore if two objects have the same mass, the mode dense object (with higher density) will occupy less volume than the other object.

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Solar, wind, and hydroelectric energy<br> are examples of<br> resources.
strojnjashka [21]

Answer:

Renewable Energy Resources.

Explanation:

Unlike fossil fuels which cannot be recovered when destroyed, these sources of energy can be recovered by a means of recycling . Recycling here reduces solid wastes which is one of the causes of land pollution.

Hydroelectric schemes can only be built in mountain regions where rainfall and rivers are plentiful which involves upset of aquatic ecosystem. This poses a dangerous pollution problem though.

Wind generators and solar panels are not very efficient energy producers. However, future schemes for producing solar energy via solar satellites are promising.

7 0
3 years ago
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How do coral reef ecosystems demonstrate the ecological principles of shifting baselines, disturbance, succession, and sustainab
kkurt [141]

Answer:

Explanation:

c

6 0
2 years ago
Why did Mendel's research succeed in clarifying the features of gene segregation among offspring where others had failed?
borishaifa [10]
Because it proves the fertilization was impossible
3 0
3 years ago
In which sealed container would the organisms be able to continuously cycle O2 and CO2 gases? A. A terrarium with a plant and a
Zina [86]

Answer:

A terrarium with a plant and a snail

Explanation:

This is because snail uses oxygen for cellular respiration and releases carbondioxide as by product.

Where as plants uses carbondioxide exhaled for photosynthesis in the presence of light energy and chlorophyll with water to produce glucose and oxygen. Therefore cycle if oxygen and carbondioxide gases is continuous.

5 0
3 years ago
A population of 1,000 healthy, at risk people is monitored for one year starting on January 1st, and the development of cases of
masha68 [24]

Answer:

\mathbf{cummulative \ incidence = \dfrac{60}{1000}}

Explanation:

We recognize that total occurrence equals new cases of disease over time divided by the number of people at risk at the onset.

Mathematically:

\mathbf{cummulative \ incidence = \dfrac{New \ cases \ of \ disease \ occurrence}{Number  \ of \ population \ at \ risk \ at \ onset}}

Given that:

Number of the population at risk = 1000 individuals

New cases during Jan 1 - Dec 31 = 60 because;

At 20 occurred on June 30 & 40 on Sept. 30) & no new cases were identified after that:

∴

\mathbf{cummulative \ incidence = \dfrac{60}{1000}}

3 0
3 years ago
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