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3 years ago

Explains why the biosphere is a key component of the earth’s systems?

Physics

1 answer:

irinina [24]3 years ago

5 0

Answer:

The biosphere can simply be defined as all the living beings present in every places on earth, that interacts with the environment and helps in various process to take place. This includes the plants, animals, and the micro-organisms that are found on the lithosphere, hydrosphere and atmosphere.

These plants and animals plays a great role in the earth's closed system. The plants are responsible for taking in carbon dioxide and liberates oxygen gas by carrying out the process of photosynthesis process. The consumers are dependent on them and after their death, the decomposers feeds them. It also helps in the transfer of energy from one trophic level to another. The humans also utilizes the solar energy and converts the light energy provided by the sun into chemical energy.

Thus, the biosphere can be considered as the key component of the earth's system.

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Light described as what two things?

seraphim [82]

Answer:modeled as an electromagnetic wave. In this model, a changing electric field creates a changing magnetic field.

Explanation:

7 0

3 years ago

An astronaut landed on a far away planet that has a sea of water. To determine the gravitational acceleration on the planet's su

sergiy2304 [10]

To solve this problem it is necessary to apply the concepts related to hydrostatic pressure or pressure due to a fluid.

Mathematically this pressure is given under the formula

$P_h = \rho g h$

Where,

$\rho$ = Density

h = Height

g = Gravitational acceleration

Rearranging in terms of g

$g = \frac{P_h}{\rho h}$

our values are given as

$P_h = 1.1 atm (\frac{101325Pa}{1atm}) = 111457.5Pa$

$\rho = 1000kg/m^3$

$h = 12.3m$

Replacing we have

$g = \frac{111457.5}{(1000)(12.3)}$

$g = 9.061m/s^2$

Therefore the gravitational acceleration on the planet's surface is $9.061m/s^2$ (Almost the gravity of the Earth)

3 0

3 years ago

What is the value of the angle of refraction of light from a crown glass slab when the angle of incidence is 50°? The slab has a

Artemon [7]

The angle of refraction is $30.3^{\circ}$

Explanation:

Refraction is a wave phenomenon that occurs when a light wave passes through the interface between two mediums. When this occurs, the speed and the direction of the light wave change.

We can find the final direction of the refracted light in this problem by applying Snell's law:

$n_i sin \theta_i = n_r sin \theta_r$

where

$n_i, n_r$ are the index of refraction in the first and second medium, respectively

$\theta_i, \theta_r$ are the angle of incidence and refraction, respectively

In this problem, we have:

$n_i = 1.00$ (the first medium is air, which has a refractive index of 1.00)

$n_r = 1.52$ (index of refraction of crown glass)

$\theta=50^{\circ}$ is the angle of incidence

Solving for $\theta_r$ , we find the angle of refraction

$\theta_r = sin^{-1}(\frac{n_i sin \theta_i}{n_r})=sin^{-1}(\frac{(1.00)(sin 50^{\circ})}{1.52})=30.3^{\circ}$

Learn more about refraction and other wave phenomena:

brainly.com/question/3183125

brainly.com/question/12370040

#LearnwithBrainly

7 0

3 years ago

Air is cooled in a process with constant pressure of 150 kPa. Before the process begins, air has a specific volume of 0.062 m^3/

Mama L [17]

Answer:

The pressure is constant, and it is P = 150kpa.

the specific volumes are:

initial = 0.062 m^3/kg

final = 0.027 m^3/kg.

Then, the specific work can be written as:

$W = \int\limits^{vf}_{vi} {Pdv} \, = P(vf - vi) = 150kPa*(0.0027 - 0.062)m^3/kg = -5.25 kPa*m^3/kg.$

The fact that the work is negative, means that we need to apply work to the air in order to compress it.

Now, to write it in more common units we have that:

1 kPa*m^3 = 1000J.

-5.25 kPa*m^3/kg = -5250 J/kg.

7 0

3 years ago

Sana loved swimming.She joined a new smimmimg club .When she looked at the floor of the pool to estimate its depth she found tha

melisa1 [442]

Answer:

Refraction

Explanation:

When light passes from a rarer medium into a denser medium, it bends in the medium away from the normal. This creates the phenomenon of "apparent depth" as given in the question.

6 0

2 years ago