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Alex777 [14]
3 years ago
14

Green sea turtles eat sea grass that grows on the sea floor. Seagrass, a foundation species, provides an important breeding grou

nd for fish and other marine organisms. A conservation program for the green sea turtles plans to introduce more turtles into an ecosystem. What could be the immediate effect of this on the ecosystem?
A) More species of fish would migrate to the region.
B) The new turtles would drive out the existing population.
C) The region would witness a spurt in the growth of sea grass.
Eliminate
D) There would be a decrease in the population of marine organisms.
Physics
2 answers:
d1i1m1o1n [39]3 years ago
3 0
The answer is D. <span> There would be a decrease in the population of marine organisms. </span>
Agata [3.3K]3 years ago
3 0

The answer is D.  There would be a decrease in the population of marine organisms.


Populations are effected not only because of predation but also due to habitat loss caused by the introduction of a new species into the ecosystem. If more sea turtles are added into the region they would deplete the sea grass, causing a decrease in the population of marine organisms due to the loss of breeding grounds and food source.

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For every  5 m of effort the object will be raised 1 m

W = work done on object = M g h      increase in PE of object

E S = W      where E is effort and S the distance thru which the effort acts

E S = M g H

E = 100 kg * 9.8 m/s^2 * 2 m / 10 m = 196 kg m / s^2 = 196 N

Check: total work = 2 * 9.8 * 100 = 1960 J

Force Needed = 1960 J / 2 m = 980 Newtons

Mechanical advantage = 980 / 196 = 5   as one would expect since the object is raised 1 m for every 5 m of force input

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The initial velocity of a micro van is 15 m/s. It gains a velocity of 40 ms in 10 seconds. Calculate the average velocity and ac
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Answer:

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The energy stored in a wooden log transforms when the log is burned. Which of the following explanations BEST describes how the
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How much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is
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1.3 second of time will be required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is 3.85 × 105 km

<h3>What is Speed ?</h3>

Speed is the distance travelled per time taken. It is a scalar quantity. And the S.I unit is meter per second. That is, m/s

In the given question, we want to find how much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is 3.85 × 10^5 km.

What are the parameters to consider ?

The parameters are;

  • The distance S = 3.85 × 10^{5} km
  • The Speed of Light C = 3 × 10^{8} m/s
  • The time taken t = ?

Speed = distance S ÷ Time t

Convert kilometer to meter by multiplying it by 1000

C = S/t

3 × 10^{8} =  3.85 × 10^{8} / t

Make t the subject of formula

t = 3.85 × 10^{8} / 3 × 10^{8}

t = 1.2833

t = 1.3 s

Therefore, 1.3 second of time will be required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is 3.85 × 105 km

Learn more about Speed here: brainly.com/question/4931057

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