2 years ago

What protects living things from too much ultraviolets radiation?

1 answer:

8 0

The ozone layer of the Earth's atmosphere is what protects living things from too much ultraviolet radiation, if that's what you're asking about.

You might be interested in

The first ionization energy of mg is 735 kj/mol. calculate zeff.

Novay_Z [31]

2.25 I believe

Hope this helped!
STSN

7 0

2 years ago

How many grams will be produced

Anni [7]

Answer:

$\Large \boxed{\sf 34.2 \ g}$

Explanation:

Mole ratio

$9:4$

$1.75:x$

Moles of CO₂

$\displaystyle \frac{4 \times 1.75}{9} =0.78$

Use formula to find mass

$\displaystyle moles=\frac{mass}{M_r}$

Relative molecular mass of CO₂ = 12 + 16 × 2 = 44

$\displaystyle 0.78=\frac{mass}{44}$

$mass=34.2$

4 0

2 years ago

Identify the property of the substance that is changing. A. composition B. volume C. boiling point

Colt1911 [192]

Property of Volume changes.

7 0

2 years ago

Read 2 more answers

DATE PAGE No. 25. calculate the temperature at which air possesses a density equal to that of hydrogen at Dºc. Density of a'r at

Gemiola [76]

Answer: what is your issue

Explanation:

7 0

2 years ago

Radar detectors use radio waves to measure the speed of moving

bagirrra123 [75]

Answer:

1.7x10^8 Hz

Explanation:

Frequency could be explained as the number of occurrences of a repeating event at a time

Given:

wavelength = 1.8 meters

The frequency f of the waves can be calculated using f = c / λ

Where c (m/s) is the speed of the wave

λ (m) is the wavelength

Speed c= 3*10^8 m/s

Frequency f= 3*10^8 /1.8

Frequency= 1.7x10^8 Hz

Therefore,the frequency of waves from a radar detector is 1.7x10^8 Hz

6 0

2 years ago