1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oliga [24]
3 years ago
14

Without the atmosphere, life on Earth would not be possible. Which of the following is NOT an explanation for how Earth’s atmosp

here protects life on the planet?
A. It allows visible light to pass through completely.


B. It contains gases that filter out ultraviolet radiation.

C. It keeps Earth warm by trapping in heat.

D. It protects life from ultraviolet rays of light
Chemistry
2 answers:
kvasek [131]3 years ago
3 0

Answer:

B

Explanation:

IM A CHEMISTRY WIZZZZ

:)

I hope u get full marks on your paper/test/quiz or whatever!

There is a 20 percent chance so stay positive!

Alex73 [517]3 years ago
3 0

Answer:

D

Explanation: ultraviolet rays are harmful to humans

You might be interested in
2. Sodium reacts with oxygen to form sodium oxide and has the following balanced chemical equation: 4 Na + O2 --> 2 Na2O. Whe
Anastaziya [24]
5 gig hi iifvjifhnkgcghgggggggg
4 0
3 years ago
Read 2 more answers
complete the following table and calculate the decrease in the freezing point of water when 1 mol glycerol (CH3OH-CHOH-CH2OH), N
garik1379 [7]

The decrease in the freezing point of the solution is −1.86oC.

<h3>What is the decrease in the freezing point?</h3>

Now we know that the freezing point depression of a solid is a colligative property of the solution.

Thus we have that;

ΔT = K m i

ΔT = freezing point depression

K = freezing constant

m = molality of the solution

i = Van't Hoff factor

Thus;

molality =  1 mol/1 Kg = 1 m

ΔT = −1.86oC/m * 1 m * 1

ΔT =−1.86oC

Learn  more about freezing point:brainly.com/question/3121416

#SPJ1

5 0
2 years ago
What are the controlled, independent, and dependent variables of this experiment?
disa [49]

Answer:

controlled: 2 drops of food coloring

independent: temperature of water

dependent: rate of diffusion

Explanation:

A controlled variable doesn't change throughout the whole experiment, a independent variable is something being tested, and a dependent variable is the results

5 0
4 years ago
How much energy is needed to vaporize 75.0 g of diethyl ether (c4h10o) at its boiling point (34.6°c), given that δhvap of diethy
malfutka [58]

Answer: 26.8 kJ of energy is needed to vaporize 75.0 g of diethyl ether

Explanation:

First we have to calculate the moles of diethyl ether

\text{Moles of diethyl ether}=\frac{\text{Mass of diethyl ether}}{\text{Molar mass of diethyl ether}}=\frac{75.0g}{74g/mole}=1.01moles

As, 1 mole of diethyl ether require heat = 26.5 kJ

So, 1.01  moles of diethyl ether require heat = \frac{26.5}{1}\times 1.01=26.8kJ

Thus 26.8 kJ of energy is needed to vaporize 75.0 g of diethyl ether

5 0
4 years ago
Why are the electrons in a nitrogen-phosphorus covalent bond not shared equally? which atom do the electrons spend more time aro
a_sh-v [17]
<span>Electrons in a nitrogen-phosphorus covalent bond are not shared equally because nitrogen and phosphorus do not have the same electronegativity. The atoms spend more time around the most electronegative atom nitrogen.</span>
6 0
4 years ago
Other questions:
  • Enriched weapons-grade uranium consists of 80% uranium-235 (235.044 amu) and 20% uranium-238 (238.051 amu). what is the average
    5·1 answer
  • Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. Potassiu
    6·2 answers
  • 55.845 nearest tenth
    15·2 answers
  • 1. A water with a pH of 9.0 contains 10 mg/L CO3-2 and 65 mg/L HCO3-. Calculate the alkalinity of the water expressed as meq/L (
    9·1 answer
  • What conditions will cause a redox reaction to be nonspontaneous?
    15·1 answer
  • Which of the following would most likely replace P in a solid solution?
    14·2 answers
  • A substance is made up of slow-moving particles that have very little space between them. Based on this information, what can mo
    9·2 answers
  • ANSWER ASAP THIS IS 6TH GRADE SCIENCE! GIVING BRAINLIEST FIVE STARS ANS A HEART!
    7·1 answer
  • You have 250.0 mL of 4.00 M sugar solution. You added 216.1 mL of water to this solution. Determine the concentration of the sug
    10·1 answer
  • Is a graph that starts at 25 and drops to 21, stays the same in temperature an endothermic reaction or an exothermic reaction?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!