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horsena [70]
3 years ago
14

Water evaporates off lakes. Winds blow across the planet. Where does the energy come from for these and other weather processes?

Physics
2 answers:
Otrada [13]3 years ago
8 0

Answer:

B. Solar energy

Explanation:

The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.

lara [203]3 years ago
7 0

Answer: Solar Energy

Explanation:

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Desertification is a process whereby land degradation in arid, semi-arid, and dry sub humid areas results from climatic variatio
Viefleur [7K]

Answer:

TRUE

Explanation:

Desertification is usually defined as the process by which a productive land is transformed into a desert. This process occurs mainly in the arid, semi-arid as well as in the dry sub-humid areas, where there occurs less amount of rainfall and presence of less or no moisture content in the air.

It is caused by various processes, such as-

  • Cutting down of trees, in order to make urban areas.
  • Lack of rainfall.
  • Overgrazing of animals.
  • Low level of groundwater.
  • Forest-fire can also lead to desertification, as the trees are burned by this process.
  • Soil erosion also is a major cause.
  • It also occurs due to changes that occur in the climate of the area.

Thus, the above-given statement is true.

3 0
2 years ago
What is the equation for elastic potential energy?
drek231 [11]

Answer: HOPE THIS HELPED YOU! :D      ;P

Elastic potential energy = force x distance of displacement.

Explanation:

6 0
3 years ago
Read 2 more answers
3. If the distance of the screen is moved from 100. cm to 200. cm the area of light would in-crease from 150. cm^2 to
german

Answer:

3) C

4 D

5) C

Explanation:

3) given that

Initial distance of the screen = 100cm

Initial area = 150 cm^2

Final distance = 200 cm

The intensity of light is inversely proportional to the square of the distance. That is

Intensity of light I = 1/d2

And also I = P/A

1/d^2 = P/A

P = A/d^2

P1 = P2

150/100 = A/200

1.5 = A/200

A = 1.5 × 200

A = 300 cm^2

4.) Light is projected onto a screen 75.0 cm from a light source. The light intensity = 4436 lux

If the screen is moved from 75.0 cm to 150. cm, the light sensor reading will be

Using inverse square law

I = 1/d^2

I×d^2 = constant. Therefore,

4436 × 75^2 = I × 150^2

I = 24952500/22500

I = 1109 lux

5.) We can express the relationship between luminosity, brightness, and distance with a simple formula.

As we tilt the serene the area of light decreases and makes the light more concentrated.

5 0
2 years ago
if the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspe
Mazyrski [523]

If the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspeed will Increase and true altitude will increase.

<h3>What is Altitude?</h3>

This refers to the vertical elevation of  a body and is the measurement of the height above the sea or ground level. An airplane's altitude is directly proportional to the airspeed as long as the power is constant.

This means that increase in airspeed will lead to an increase in altitude and vie versa. This is the reason why as it runs fast, it can be observed that it begins to elevate.

Read more about Altitude here brainly.com/question/1159693

#SPJ1

5 0
1 year ago
What is the minimum energy required to lift an object weighing 200 newtons to a height of 20 meters
IgorC [24]
Potential energy E = mgh

m mass
g gravitational constant
mg = weight (in Newton)
h = height (in meter)
7 0
3 years ago
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