If I remember this correctly, I believe the answer is D
In Rwanda, there are more young children than teenagers, and more teenagers than adults. This age structure indicates a population that <u>Will double in 30 years</u>
While declining population frequently have more modest level of individuals in these age gatherings, developing populaces ordinarily have higher extents of individuals in more youthful age gatherings. Populaces that are steady normally have a higher extent of individuals in conceptive age gatherings.
The world's populaces are maturing because of declining rates of birth and increasing future. Because of this segment shift, the level of people beyond 60 years old has expanded.
More individuals will live longer on account of expanded admittance to sufficient lodging, supporting food, and medical services, which is the most clear benefit of a maturing populace.
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Answer:
A
Explanation:
Since the first option is true and cities did encourage such developments the answer is A
<span>Fossil Fuels such as coal, oil, and natural gas were formed over millions of years by organic matter like plankton, plants and other life <span>forms!</span></span>
Answer:
53.2%
Explanation:
- Write the mass of the elements in your molecule:
Mass of Si in 1 mol SiO2 =28.1g
Mass of O in 1 mol SiO2 =16x2g= 32g
- Now find the mass of your compound
Mass of compound= 28.1+32=60.1
- Divide each element's mass by the mass of the compound to find the percent by mass following this formula:
% by mass = (mass of element/mass of compound) x 100
% by mass of oxigen= (32g/60.1) x 100
% by mass of oxigen= 53.2%
I hope you find this information useful and interesting! Good luck!
