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
irinina [24]
2 years ago
6

How do farms affect oxygen levels in the ponds

Biology
1 answer:
joja [24]2 years ago
3 0

Answer:

The oxygen-rich surface water blends with the deeper, depleted water. The dissolved oxygen concentration in the mix can be too low to support life in the pond. Both fish and plankton can die from low dissolved oxygen following a turnover. ... Thus, turnover can happen if a cold rain and wind cools the surface wate

Explanation:

You might be interested in
Which term describes a dna molecule?
kotegsom [21]
A twisted double helix.
3 0
3 years ago
Explain why using wind, solar, and biomass energy can lead to sustainable energy use.<br>​
11Alexandr11 [23.1K]

Answer:

These are things that won't be going away. Natural gasses and fossil fuels will likely run out someday or become much harder to find. When you use these sources of energy, they won't be going away and therefore will be sustainable because we can always continue using them.

Does that make sense?

Explanation:

5 0
2 years ago
Read 2 more answers
12.01mL +35.2mL +6mL=
Inga [223]
53.21 ml good luck man
7 0
3 years ago
The Miller and Urey experiment (or Urey–Miller experiment) was an experiment that made organic compounds out of inorganic ones b
MaRussiya [10]

Answer:

The goal of the Miller-Urey experiment was to test the idea that through basic, natural chemical reactions, the complex molecules of life (in this case, amino acids) may have emerged on our young world. The experiment was a success in generating during the simulation amino acids , the building blocks of life.  

They were trying to prove that the formation of life was preceded by chemical evolution.

Explanation:             <u> MILLER-UREY EXPERIMENT </u>

    The Miller-Urey experiment (or Miller experiment) was a chemical experiment that simulated the conditions thought to be present on early Earth at the time (1952) and under those conditions tested the chemical origin of life. At that time, the experiment sponsored Alexander Oparin's and J. B. S. Haldane 's belief that putative conditions favored chemical reactions on the primitive Earth that synthesized more complex organic compounds from simpler inorganic precursors. It was conducted in 1952 by Stanley Miller, supervised at the University of Chicago by Harold Urey, and published the following year as the classic experiment investigating abiogenesis.

Water (H2O), methane ( CH4), ammonia ( NH3) and hydrogen ( H2) were utilized in the experiment. Within a sterile 5-liter glass flask linked to a 500 ml flask half-full of water, the chemicals were all sealed. To cause evaporation, the water in the smaller flask was heated and the water vapour was allowed to reach the larger flask. In order to simulate lightning in the water vapor and gaseous mixture, continuous electric sparks were shot between the electrodes and then the simulated atmosphere was cooled again so that the water condensed and trickled into a U-shaped trap at the bottom of the apparatus.

The solution gathered at the trap had turned pink after a day, and the solution was deep red and turbid after a week of continuous operation. The boiling flask was then removed and mercuric chloride was applied to avoid microbial contamination. By adding barium hydroxide and sulfuric acid, the reaction was discontinued and evaporated to eliminate impurities. Using paper chromatography, Miller detected five amino acids found in the solution: glycine, α-alanine and β-alanine were positively identified, while aspartic acid and α-aminobutyric acid (AABA) were less certain, due to the spots being faint.

Therefore, Miller's experiment was trying to prove the formation of diverse organic molecules from inorganic molecules.

4 0
3 years ago
Why is Earth considered a system? What are the main parts that make up the Earth system?
Rashid [163]

Answer:

The earth is a vast, complex system powered by two sources of energy: an internal source (the decay of radioactive elements in the geosphere, which generates geothermal heat) and an external source (the solar radiation received from the Sun); the vast majority of the energy in the earth system comes from the Sun.

Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).

Explanation:

5 0
3 years ago
Other questions:
  • 50 POINTS!!! For anyone who wants to do an experiment because I got plenty of other projects to work on xD. It would be super he
    13·2 answers
  • When the sun's disk is covered in an eclipse the corona is still visible?
    10·1 answer
  • Dr. iness is studying the distress calls of several different types of animals. what field of psychology is his specialty?
    7·1 answer
  • Is when the brain develops a chemical need for a substance. (1 point)
    8·1 answer
  • 19. Which structure is the boundary between a living cell and its environment?
    13·2 answers
  • Based on this passage, what conclusions can be made about how the speaker feels about Mrs. Long, the librarian?
    11·1 answer
  • How many pairs of chromosomes are in a body cell of a macaw
    5·1 answer
  • What happens when an electrically charged pencil is placed close to running water from a faucet?
    11·1 answer
  • How does genotypic variation occur?
    7·1 answer
  • Symptoms of malaria appears when
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!