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
quester [9]
3 years ago
10

50 POINTS PLUS BRAINLEIST FOR BEST ANSWER! I NEED HELP FAST ITS DUE TOMORROW!

Biology
2 answers:
Svetach [21]3 years ago
4 0

Answer:

Explanation:

Helium is the second most abundant element in the universe, but here on earth, it's rather rare. Most people guess that we extract helium from the air, but actually we dig it out of the ground. Helium can be found in certain parts of the world, notably in Texas, as a minor component in some sources of natural gas.

Helium is generated underground by the radioactive decay of heavy elements such as uranium and thorium. Part of the radiation from these elements consists of alpha particles, which form the nuclei of helium atoms. ... Helium can also be produced by liquefying air and separating the component gases

When the gas contains more than about 0.4% helium by volume, a cryogenic distillation method is often used in order to recover the helium content. Once the helium has been separated from the natural gas, it undergoes further refining to bring it to 99.99+% purity for commercial use.

pantera1 [17]3 years ago
4 0

Answer:

1. Helium is the second most abundant element in the universe, but here on earth, it's rather rare. Most people guess that we extract helium from the air, but actually we dig it out of the ground. Helium can be found in certain parts of the world, notably in Texas, as a minor component in some sources of natural gas.

2. Helium is generated underground by the radioactive decay of heavy elements such as uranium and thorium. Helium can also be produced by liquefying air and separating the component gases.

3.  Natural gas is separated into its major components through a distillation process known as fractional distillation. Sometimes this name is shortened to fractionation, and the vertical structures used to perform this separation are called fractionating columns. In the fractional distillation process, the nitrogen and methane are separated in two stages, leaving a mixture of gases containing a high percentage of helium. At each stage the level of concentration, or fraction, of each component is increased until the separation is complete.

You might be interested in
What other cells structures does mitochondria work with?
maksim [4K]
Other cells structures that mitochondria work with is : chloroplast

they work together in energy cycle and release ATP into the cell during respiration process

hope this helps

8 0
3 years ago
How did cyanobacteria affect Earths atmosphere during the Proterozoic Eon?
dalvyx [7]

Answer:

These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen. In fact, all the plants on Earth incorporate symbiotic cyanobacteria. For some untold eons prior to the evolution of these cyanobacteria, during the Archean eon, more primitive microbes lived the real old-fashioned way: anaerobically. These ancient organisms—and their "extremophile" descendants today—thrived in the absence of oxygen, relying on sulfate for their energy needs. But roughly 2.45 billion years ago, the isotopic ratio of sulfur transformed, indicating that for the first time oxygen was becoming a significant component of Earth's atmosphere,

7 0
3 years ago
In humans blood type is determined by the A, B, and O alleles. The A and B alleles are codominant to each other and dominant ove
Komok [63]

I'm taking an educated guess of A or B.

7 0
3 years ago
Which amino acid is coded for by the mRNA codon UAA?<br> start codon<br> stop codon.<br> Leu<br> Asn
andreyandreev [35.5K]
Stop codon is the answer.
7 0
3 years ago
Read 2 more answers
What are spermatophyta​
german

Answer:

plants that produce seeds

Explanation:

7 0
3 years ago
Other questions:
  • Part B: Research (11 points) In part B you will be doing some research on desertification.
    11·1 answer
  • During which process is ethanol produced?
    11·2 answers
  • Identify four organelles that should be present in the eukaryotic organism and describe the function of each organelle.
    10·1 answer
  • Which hormone dramatically affects physical appearance?
    6·1 answer
  • If all the genes of E. coli were active at once, what would result?
    6·2 answers
  • Which type of plant could best compete for sunlight in a forest?
    9·2 answers
  • Which is the largest group of organisms that can interbreed?
    8·2 answers
  • -
    7·1 answer
  • Which of the following is an advantage of asexual reproduction? O Asexual reproduction produces greater genetic variation than d
    13·2 answers
  • specific macrophage populations promote both cardiac scar deposition and subsequent resolution in adult zebrafish
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!