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zaharov [31]
2 years ago
10

black coffee has a pH of 5, therefore its H+ concentration is ______ times greater than a solution with a pH of 10.

Biology
1 answer:
Tju [1.3M]2 years ago
6 0

Answer:

100,000

Explanation:

pH of coffee = 5

pH of solution = 10

Concentration of H+ ions between successive pH values are in multiples of 10

Hence, the pH difference :

pH of solution - pH of coffee

(10 - 5) = 5

Hence, difference in H+ ions will be :

10^5 = 10*10*10*10*10 = 100,000 times

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Human caused reductions of biodiversity, include pollution, invasive species, and overexploitation.
Andrew [12]

Answer:

True

Explanation:

Development, together with globalization, drove severe changes at a global level. The natural and original environments suffered from these effects and still are.

Human beings have constantly been altering the natural ecosystems and causing irreparable damages to nature. For many decades, development involved society and technology advance over new areas unpopulated by humans.

<u>Some</u> of the principal human activities responsible for biodiversity loss are

  • the uncontrolled use of unrenewable resources,
  • overexploitation of renewable resources;
  • land destruction for the mining industry, farming and cattle industry, buildings, and other infrastructures;
  • the unplanned advance of cities, and opening of new roads to connect those cities.  

All of them involving

  • deforestation and fragmentation of natural landscapes;
  • water, air, and soil pollution,
  • species loss, and reduction of biodiversity.

With globalization, transport around the world became normal. And when traveling around the world, new species are intentionally or unintentionally transported too. When these species, of animal or vegetable origin, get established in a new area, they overgrow to the point of turning invasive.

Invasive species are uncontrollable and cause severe damage in native endemic species by competing for resources. The whole ecosystem structure changes.

But there are some background glitches in the system that are the principal responsible for all the mentioned activities. Some important aspects are lacking

  • The respect for nature,
  • People´s education at different levels to care and protect wildlife,
  • Interest in keeping ancestral knowledge,
  • Planning and previous environmental impact studies,
  • Policies to control human activities,
  • Caring involved government.

If, as a society, we lack these aspects, the possibilities of changing our impact on nature are far away.  

6 0
3 years ago
You must draw a Punnett square and work out these problems to get the correct answers. In cats, long-hair (H) is dominant to sho
Lana71 [14]

Answer:

The correct answer is -

Genotypes: 1 heterozygous dominant: 1 recessive

Phenotypes: 1 long hair cat: 1 short hair cat

probability: 50% chances of both long and short hair cats

Explanation:

It is given that long hair is a dominant represented by H, over the short hair represented by h. In the cross of a heterozygous cat for long hair with a cat with short hair, would produce H, h and h, h gametes respectively.

Cross: Hh × hh

    H    h

h    Hh   hh

h   Hh   hh

In this Punnett, there are two heterozygous long hair offspring produced and two short-hair cats.

So, Genotypes: 1 heterozygous dominant: 1 recessive

Phenotypes: 1 long hair cat: 1 short hair cat

probability: 50% chances of both long and short hair cats

7 0
3 years ago
What do the black bars represent in this spectrum?
Step2247 [10]

Answer:

cosmic background radiation

Explanation:

hope this helps!!

3 0
2 years ago
Please explain the words above with your own words
aksik [14]

Ribosomes - An organelle that creates proteins.

Golgi Apparatus - Moves lipids around the cells, also modify's, sorts, and packages proteins.

Hope this helps!

6 0
2 years ago
Which type of rock forms deepest inside earth ?
Assoli18 [71]

igneous rock forms deepest in the earth

4 0
3 years ago
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