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
lora16 [44]
1 year ago
7

which statement concerning the oxygen level in the lake can be inferred from the graphs. 1) the increase of the sewage waste fro

m 1950 to 1970 was due to decreasing human population. 2) the decreasing and sewage Way shows the environmental problems associated with the lamb population have been solved. 3) sewage waste is a good source of nutrients for most of fish.4) increases in sewage ways were responsible for decreasing oxygen levels in the lake
Chemistry
1 answer:
yarga [219]1 year ago
7 0

Increases in sewage waste were responsible for decreasing oxygen levels in the lake

Humans does have the impact on the environment in several ways. Common effects includes lowered water quality, elevated pollution and greenhouse gas emissions, depletion of natural resources and contribution to global climate change.

As global temperatures increasing , weather patterns on earth will dangererously change. While some areas will have longer growing seasons, others will become drought wastelands as water will decrease in vast areas, turning once floral regions into deserts. The elevation will impact weather patterns, provoking more intense hurricanes in both size and frequency, as well as intensifying and prolonging droughts and heat waves. But air pollution not only  just effect the environment . The evidence is increasing that poor air quality and rising temperatures are ruining delicate ecosystems, even led to increased asthma and cancer rates in humans.

To know more about environment visit :

brainly.com/question/14558098

#SPJ9

You might be interested in
The energy needed to remove an electron from an atom is called
Arlecino [84]

Ionization energy, also called ionization potential, in chemistry, the amount of energy required to remove an electron from an isolated atom or molecule

3 0
3 years ago
Which type of bond creates a crystalline structure?
Vaselesa [24]
Ionic bond is the bond that creates a crystalline structure
7 0
4 years ago
What happens to the energy absorbed during an endothermic reaction
LuckyWell [14K]

Answer:

more energy is absorbed when the bonds in the reactants are broken

4 0
2 years ago
What is the name of the element with a valence electron configuration of 4s24p3?
Gnesinka [82]
<span>The element Arsenic, or As in the periodic table, possesses the valence electron configuration of 4s2 4p3. It has an atomic number of 33 and an atomic mass of 74.92, and is classified as a metalloid.</span>
4 0
4 years ago
What mass of H₂ is needed to react with 8.75 g of O₂ according to the following equation: O2(g) + H2(g) → H₂O(g)?
FromTheMoon [43]

Explanation:

For reacting with 8.75 grams of oxygen, 1.08 grams of hydrogen is required.

The given balanced equation has been:

\rm O_2\;+\;2\;H_2\;\rightarrow\;H_2OO2+2H2→H2O

From the equation, 1 mole of oxygen reacts with 2 mole of hydrogen to give 1 mole of water.

The mass of oxygen has been: 8.75 g,

Moles = \rm \dfrac{weight}{molecular\;weight}molecularweightweight

Moles of oxygen = \rm \dfrac{8.75}{32}328.75

Moles of oxygen = 0.27 mol

Since,

1 mole Oxygen = 2 mole hydrogen

0.21 mol oxygen = 0.54 mol hydrogen

Mass of hydrogen = moles \times× molecular weight

Mass of hydrogen = 0.54 \times× 2

Mass of hydrogen = 1.08 grams.

Thus, for reacting with 8.75 grams of oxygen, 1.08 grams of hydrogen is required.

6 0
2 years ago
Other questions:
  • What is the basic notation for a proton?
    9·1 answer
  • Given the balanced equation, calculate the mass of product that can be prepared from 2.36 g of zinc metal.
    9·1 answer
  • noble gases, such as argon and neon, are known for being extremely non-reactive. neon and argon are non-reactive because they
    7·1 answer
  • Calculate the number of moles if we were given 9.2 x 10 ^ 23 atom of lead . ( plz show work) (helpme0)
    11·1 answer
  • Please explain why the answer is correct and why the others aren’t.<br><br> Thank you!!
    11·1 answer
  • PLEASE SOMEONE! The density of the acetic acid solution is 1.05 g/mL. Calculate the %(m/m) of the acetic acid solution (convert
    12·1 answer
  • Which statement describes the way in which energy moves between a
    9·2 answers
  • What is carbonization?
    5·1 answer
  • If the graph of y = a x 2 + b x + c does not intersect the x -axis, then what is true about the roots? Both are real roots. Both
    11·1 answer
  • Explain The element lithium has two common isotopes: Li–6 and Li–7 If the average atomic mass of lithium is 6.94004 u, determine
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!