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valentinak56 [21]
3 years ago
6

Which of the following are some examples of rapid environmental changes?

Chemistry
2 answers:
Zina [86]3 years ago
6 0
I think it’s weather
Marysya12 [62]3 years ago
6 0

Answer: Fires, Weather and Landslides are examples of rapid environmental changes

Explanation:

Environmental changes are currently one of the world’s major issues. Rapid changes in the environment is mostly attributed to anthropogenic factors in the environment such as CO2 emission, gas combustion in industries soil erosion from man-made inputs leading to landslides from road networks, hence the changes in the weather condition as well as fire, and landslides. As at 40 – 60 million years ago during the cretacious period, the earth experienced warmer conditions conducive enough for habitation, whereas existing conditions now in the 21st century are colder, producing harsh conditions that are sometimes considered to be bad to breath in. Hence the reason why Fires arising from deforestation, landslides from bad man-made planning in constructional projects and Climate change causing a depletion in the Ozone layer are considered to be an example of rapid environmental changes.

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Why does a solution of acid and sodium thiosulfate go cloudy
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The soulustion. turn cloudy due to the precipitation of Sulphur.
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3 years ago
A boy with pneumonia has lungs with a volume of 1.7 L that fill with 0.070 mol of air when he inhales. When he exhales, his lung
BlackZzzverrR [31]

Answer:

0.053moles

Explanation:

Hello,

To calculate the number of moles of gas remaining in his after he exhale, we'll have to use Avogadro's law which states that the volume of a given mass of gas is directly proportional to its number of moles provided that temperature and pressure are kept constant. Mathematically,

V = kN, k = V / N

V1 / N1 = V2 / N2= V3 / N3 = Vx / Nx

V1 = 1.7L

N1 = 0.070mol

V2 = 1.3L

N2 = ?

From the above equation,

V1 / N1 = V2 / N2

Make N2 the subject of formula

N2 = (N1 × V2) / V1

N2 = (0.07 × 1.3) / 1.7

N2 = 0.053mol

The number of moles of gas in his lungs when he exhale is 0.053 moles

7 0
3 years ago
What happens when the concentration of water inside a cell is lower than the concentration of water outside the cell?
adell [148]

Answer:

Water outside the cell will flow inwards by osmosis to attain equilibrium

Explanation:

In the hypotonic environment, the concentration of water is greater outside the cell and the concentration of solute is higher inside. A solution outside of a cell has a lower concentration of solutes relative to the cytosol.

If concentrations of dissolved solutes are greater inside the cell, the concentration of water inside the cell is correspondingly lower. As a result, water outside the cell will flow inwards by osmosis to attain equilibrium.

Osmosis is a process by which molecules of a solvent tend to pass from a less concentrated solution into a more concentrated one through a semipermeable membrane.

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What would happen to a diver who does no exhale while surfacing from a 30 m dive?
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The pictures showed an organ system in the human body
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