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adell [148]
3 years ago
10

PLZ HURRY IT'S URGENT!

Biology
1 answer:
Anna71 [15]3 years ago
7 0

Answer:

C.  Fe2O3 + 2Al → 2Fe + Al2O3

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Arrange the objects from smallest to largest in the solar system
telo118 [61]

Answer:

Asteroid,moon,planet,star,solar system,galaxy, universe

5 0
3 years ago
Why do Canadians pay much less for treated water.
lesya692 [45]
Canada, one of the wealthiest countries in the world, is also one of the most water-rich. The province of Ontario shares the Great Lakes—which contain 18 percent of the world’s fresh surface water—with the United States. Access to sufficient, affordable, and safe drinking water and adequate sanitation is easy for most Canadians. But this is not true for many First Nations indigenous persons. In stark contrast, the water supplied to many First Nations communities on lands known as reserves is contaminated, hard to access, or at risk due to faulty treatment systems. The government regulates water quality for off-reserve communities, but has no binding regulations for water on First Nations reserves.
7 0
3 years ago
Hypothesis: If the porosity of three soils are tested, then red clay soil will have the lowest porosity.
NNADVOKAT [17]

Answer:

This question is incomplete, based on the given hypothesis, the question is asking to identify the variables (independent and dependent) of the experiment.

*Independent variable: DIFFERENT SOILS

*Dependent variable: Porosity

Explanation:

- Independent variable is the variable that is manipulated or changed by an experimenter in order to effect a response in another variable. In this question, three different soils were used, hence, the SOIL is the independent variable.

- Dependent variable is the variable that responds to changes made to the independent variable. It is the variable being measured in an experiment. In this case, the porosity is the variable being measured, hence, it is the dependent variable.

4 0
3 years ago
Why were chemical disinfectants once commonly compared with phenol?
kotykmax [81]

Answer:

The chemical components, which are utilized to eradicate or eliminate pathogenic microbes are known as chemical disinfectants. These comprise sodium hypochlorite, chlorine, bromine, hydrogen peroxide, chloramines, and others.  

Traditionally, the chemical disinfectants are usually compared with phenol as phenol was the first or the foremost used chemical agent for the purpose.  

4 0
2 years ago
Think about the dna coding sequence of a gene. if an a were swapped for a t, what kind of mutation could it cause and why?
sukhopar [10]
If an A (Adenine) were swapped for a T (Thymine) it will lead to A TRANSVERSION TYPE OF POINT MUTATION.

Replacement of an A with a T is a transversion type of point mutation because in transversion the purine is replaced with a pyrimidine. Since in this case only one nucleotide is replaced, it is a point mutation.
8 0
3 years ago
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