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matrenka [14]
3 years ago
5

Which of the these does not derive its energy directly or indirectly from the sun? A) Earthquakes. B) Hurricanes. C) animals. D)

wind.
Biology
1 answer:
Ganezh [65]3 years ago
8 0
B hurricanes hope I was helpful
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A sand storage tank used by the highway department for winter storms is leaking. As the sand leaks out, it forms a conical pile.
harina [27]

Answer:

Rate of change of volume of the pile  = 54\pi

Explanation:

Given -

Rate of increase of the base of the pile = 0.75 inches per minute

Height of the pile = 2 * the radius of the base

Let "h"  be the height of the pile and "r" be the radius of the base.

Then h = 2* r

Radius "r" = 6 inches

Rate of change of radius i.e

\frac{dr}{dt} = 0.75

Volume of conical pile

\frac{\pi }{3} * r^2 * h\\= \frac{\pi }{3} * r^2 * 2 * r\\= \frac{\pi }{3} *2* r^3

Change in volume of conical pile

\frac{dV}{dt} =  \frac{dr}{dt}  * \frac{6* \pi * r^2 }{3}

Substituting the value of rate of change of radius, we get -

\frac{dV}{dt}  = 2 * \pi * (6^2) * (0.75)\\\frac{dV}{dt}  = 54 \pi

Rate of change of volume of the pile  = 54\pi

8 0
3 years ago
Explain the four steps of how enzymes work
viktelen [127]
Speed. Reaction. Function. Alter.
3 0
3 years ago
What adaptions do sea snakes have for life in the ocean?
Mnenie [13.5K]

Answer: Sea snakes have many adaptations. Like for instance, they have paddle-like tails to help swim more efficiently, and a special flap of tissue to prevent water from entering its lungs.

Explanation:

They develop these adaptations for survival purposes.

6 0
3 years ago
Read 2 more answers
Why would rapid change in climate potentially lead to ecological problems?
nadya68 [22]

The rapid change in the climate would potentially lead to ecological problems because evolution is unlikely to occur quickly enough to keep pace with biome changes.

<h3>What do you mean by Evolution?</h3>

Evolution may be defined as the process of growth and development or the theory that organisms have evolved and developed from past organisms.

Biome changes occur due to the fact of evolution. Both evolution and biome changes synergistically move forward to support organisms' life in a much better way.

Therefore, the rapid change in the climate would potentially lead to ecological problems because evolution is unlikely to occur quickly enough to keep pace with biome changes.

To learn more about Evolution, refer to the link:

brainly.com/question/1144962

#SPJ1

8 0
2 years ago
Discuss the factors that could fail the process of dough rising<br>(6marks)​
Alex Ar [27]

Answer:

The yeast is no longer active, Climate conditions, too much liquid, Wrong type and amount of yeast, Not adding or using too little salt, Insufficient baking time and Wrong oven temperature.

Explanation:

The yeast is no longer active, Climate conditions, too much liquid, Wrong type and amount of yeast, Not adding or using too little salt, Insufficient baking time and Wrong oven temperature are the factors that could fail the process of dough rising. For rising of dough, the environmental conditions and materials that is used in dough must be present in optimum range or quantity.

8 0
3 years ago
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