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2 years ago

Which sphere protects Earth’s surface? atmosphere biosphere geosphere hydrosphe

Chemistry

2 answers:

nydimaria [60]2 years ago

6 0

I believe the correct answer is atmosphere

Travka [436]2 years ago

6 0

Answer:

Hiii

Explanation:

Your answer is Atmosphere

The atmosphere protects life on Earth by absorbing ultraviolet solar radiation and warming the surface through heat retention (the greenhouse effect). The atmosphere is further classified into multiple layers by temperature, which include the thermosphere, the mesosphere, the stratosphere, and the troposphere.

Hope it helps:)

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"which is a correct description of the organization of subatomic particles in atoms?"

Irina18 [472]

Which is a correct description of the organization of subatomic particles in atoms?

Protons and neutrons are tightly packed into a small nucleus. Electrons occupy the space
outside the nucleus

hope this helps.

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2 years ago

The atoms in the diagram above are...

vichka [17]

Answer:

losing valence electrons

Explanation:

please Mark as BRAINLIST answer

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2 years ago

Water has a heat capacity of 4.184J/g C. If 50 g of water has a temperature of 30°C and as added to the water causing the

Irina-Kira [14]

Answer is 3 so correct answer is 3

3 0

2 years ago

For IR radiation with û = 1,130 cm 1, v=__THz

Dmitry [639]

Answer: The frequency of the radiation is 33.9 THz

Explanation:

We are given:

Wave number of the radiation, $\bar{\nu}=1130cm^{-1}$

Wave number is defined as the number of wavelengths per unit length.

Mathematically,

$\bar{\nu}=\frac{1}{\lambda}$

where,

$\bar{\nu}$ = wave number = $1130cm^{-1}$

$\lambda$ = wavelength of the radiation = ?

Putting values in above equation, we get:

$1130cm^{-1}=\farc{1}{\lambda}\\\\\lambda=\frac{1}{1130cm^{-1}}=8.850\times 10^{-4}cm$

Converting this into meters, we use the conversion factor:

1 m = 100 cm

So, $8.850\times 10^{-4}cm=8.850\times 10^{-4}\times 10^{-2}=8.850\times 10^{-6}m$

The relation between frequency and wavelength is given as:

$\nu=\frac{c}{\lambda}$

where,

c = the speed of light = $3\times 10^8m/s$

$\nu$ = frequency of the radiation = ?

Putting values in above equation, we get:

$\nu=\frac{3\times 10^8m/s}{8.850\times 10^{-4}m}$

$\nu=0.339\times 10^{14}Hz$

Converting this into tera Hertz, we use the conversion factor:

$1THz=1\times 10^{12}Hz$

So, $0.339\times 10^{14}Hz\times \frac{1THz}{1\times 10^{12}Hz}=33.9THz$

Hence, the frequency of the radiation is 33.9 THz

7 0

2 years ago

Why is weather forecast so important for hang gliders need by 2:50 today

Montano1993 [528]

You need to check the weather to make sure its safe to hang glide, think about it you wouldn't want to go out and hang glide during a storm and if its not bad weather when you start, it could change depending on the forecast. So its good to always check and make sure there are no surprises when you are up in the sky.

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3 years ago