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Vera_Pavlovna [14]
2 years ago
7

A community is surrounded by forests. There is heavy rainfall, and most of the year it is very cloudy. It is located near two fa

st-flowing rivers. The people want to build a power plant that will not pollute. They are choosing between solar, biomass, or hydroelectric power. Write one to two sentences about each of these energy sources. Describe whether each energy source would meet their goals, and whether it is a good energy source for their area
Biology
1 answer:
Aleonysh [2.5K]2 years ago
8 0

Answer: Hydroelectric power will be the best energy source.

Explanation:

<u>Solar energy-</u> It refers to the energy that is directly derived from the sun, and are later used to convert into some kind of electrical or thermal energy. For example, solar panels.

<u>Biomass energy-</u> It is a type of energy that are directly obtained from the plants as well as organisms. This can be regenerated again and again. For example, bio-gas and food crops.

<u>Hydroelectric power-</u> It is a type of energy that is collected, from the rapid motion of water. A dam is needed to construct across a narrow river, which will store water as a reservoir. And this water, when allowed to flow then it initiates the movement of the turbines and due to this continuous motion of the turbines, electricity is generated.

Thus, the most efficient energy source for the given area is the hydroelectric energy, that fulfills the condition for setting up dams in the two rivers, which will generate a huge amount of electricity.

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Cell differentiation is how generic embryonic cells become specialized cells.

Explanation:

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7 0
2 years ago
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The human circulation system has approximately 1×109 capillary vessels. each vessel has a diameter of about 8 µm . assuming card
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It seems you mean 1x10^9 because there are a lot of capillaries indeed. The answer I got is v = 1.65788 * 10^9 meters / second

Given: 
vessel diameter = D = 8um
r = D/2 = 4um
v = velocity of blood flow is equal to cardiac output / total capillary area

So, v = Q/A

Where:
Q = cardiac output = 5 liters / minute
A = total capillary area = pi(r^2) multiplied by the number of capillaries

Solve A = pi(r^2) x 10^9
A = pi(4um^2) x 10^9
= pi(16um^2) x 10^9 = 50265000000 um^2

Convert to meters. You will get 50265 m^2 

Since velocity uses a meters/second unit format, you should convert Q to something more applicable. 

Q = 5 Liters / minute
= 5 L/minute x 0.001 cubic meter/ 1L 
= 0.005 m^3/minute 

Combine them all and you will get: 

v = Q/A = (0.005m^3 / min) / 50265 m^2 = 0.005 m^3 / (min)(50265 m^2) 

Then convert minute to seconds, and cancel out m^2 with m^3. 

v = 0.005m / 50265 minutes (1minute / 60 seconds) = 0.005m / [60(50265)] seconds

v = 0.00000000165788 meters / second
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4 0
2 years ago
Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to whi
barxatty [35]

Answer:

The correct answer is a. Reduction in species diversity

Explanation:

In habitat fragmentation, the large area of forest is divided into many smaller patches which reduce the area of habitat for species live there. This Fragmentation of habitat occurs mainly due to human activities like making highways and roads in the area.

This separates species member from each other which reduces the gene flow between that which can lead to inbreeding depression in a species and extinction of species can occur.  

Cutting trees and human activities can alter the environment negatively which can cause extinction of some species that reduce species diversity. So the correct answer is a.

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Different brain regions are activated when we consider ingroup versus outgroup members. for instance, the ________ is activated
lapo4ka [179]

<span>Answer: D. medial prefrontal cortex</span>

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