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Dovator [93]
3 years ago
15

How do scientists know what is happening within a landfill and what data do they collect to tell them the health of the surround

ing environment?
Biology
1 answer:
Lady bird [3.3K]3 years ago
5 0

Answer:

Scientist come to know about the land feel by various measures such as quantity of methane gas, quantity of radioactive materials, etc. They collect data from a particular area and checks it whether it is under critical range or not.

Explanation:

Land-filling is a process by which all the waste which is solid is buried under the ground. It is also a type of land pollution. It degrades the land quality. The land is no more fertile to grow crops. some of the waste are also radioactive which harmful effect the animals and plant living in that area. It also tends to have the humans living nearby that area. this area is also capable of creating methane gas which is very explosive in nature.

Scientist plays an important role for finding out the critical condition of land. They also have instrument which are very helpful for finding out the critical range of the radioactive materials.

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Which of the following is true about elements?
AleksAgata [21]

Answer:

I believe the answer is D or B.

Explanation:

4 0
3 years ago
(c) Based on the data in Table 1, describe why the dominant alleles for body color and wing shape are the alleles that produce a
Brrunno [24]

Answer:

Check the explanation

Explanation:

Consider the below table of F2 data of phenotypic flies: we can reconstruct the table as seen in the second attached image below:

From the above observations it is clear the Gray body long wings and Ebony body vestigial wings are the parental combinations and that the Gray body vestigial wings and Ebony body long wings are the recombinants.

Also the ratio indicates that Gray body is dominant over ebony body and that long wings is dominant over vestigial wings.

here the genes for the two characters have shown independent assortment which means that the genes are unlinked if located on the same chromosome or are located  on different chromosomes.

Now F1 hybrid= GgLl (G for Grey and L for Long)

Cross between F1 hybrid and true breeding Gray vestigial (GGll)

GgLl x GG ll

Gametes-----------> GL Gl gL gl Gl

        GL                          Gl                      gL                  gl

Gl    GGLl                      GGll                  GgLl               Ggll

   (Gray long)      (Gray vestigial)     (gray Long)     (Gray vestigial)

Therefore the probability of getting the flies with gray body vestigial wings= 2/4= 50%

b) The reason why the students obtained the above given F2 results involving a cross between true breeding Gray body and long wings with true breeding Ebony body and vestigial wings is that the genes for the two charcters asssort independently in F2 generation and that the genes are not linked as:

Parents------------------> GGLL x ggll

Gametes -----------------> GL gl

F1---------------------> GgLl (Gray long but in heterozous condition)

Now GgLl x GgLl

Gametes GL Gl gL gl   GL Gl gL gl

Here gametes assorted independently and hence in F2 generation we got the above results (U can show the results in the form of punnett square.

4 0
3 years ago
Biju RD, Wu J, Hussain Z. Tension pneumocephalus after skull base surgery. A case report and review of literature. J Clin Neuros
inn [45]

The term "pneumocephalus" refers to the condition in which air is present in the cranial cavity.

What happens in pneumocephalus?

  • Increased intracranial pressure causes tension pneumocephalus, a neurosurgical emergency that can cause headaches, seizures, loss of consciousness, and even death.
  • Clinically separating the two entities is difficult but essential.
  • Tension pneumocephalus following skull base surgery was found to be a rare phenomenon with just eleven cases described, according to a survey of the literature on PubMed/MEDLINE.
  • After treatment, the majority of patients experienced full symptom relief.
  • Following skull base surgery, tension pneumocephalus is a potential complication that clinicians should be aware of.
  • An understanding of imaging characteristics and a high level of suspicion are necessary for accurate diagnosis. Rapid management is essential to avoid potentially disastrous effects.

Learn more about human skull with the help of the given link:

brainly.com/question/4537715

#SPJ4

3 0
1 year ago
Explain the processes that take place in the stroma including the reactants going in and the product from these processes in (a)
MakcuM [25]
They are the light reactions and calvin cycle. The products from light reactions are ATP and NADPH
7 0
3 years ago
Read 2 more answers
An object with a mass of 20 kg and potential energy of 584 J is what distance above the ground
grigory [225]

Answer:

29.2 m

Explanation:

P=mh. Plug in the values.

584 J = 20 kg x <em>h</em>

h = 29.2 m

If it's gravitational potential energy multiply is by gravity which I think is 10 m/s.

8 0
2 years ago
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