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3 years ago

What are the roles of a decomposer?

Chemistry

1 answer:

Kitty [74]3 years ago

4 0

Answer:

The roles of decomposers organisms are to degrade organic matter and contribute to the nutrition of the soil, which involves recycling the chemical elements needed by living organisms.

Explanation:

In nature, decomposers -such as bacteria and fungi- are heterotrophic organisms that require nourishment from organic matter in order to survive, being the last level of the food chains.

The role of decomposers in an ecosystem can be summarized in two main functions:

Degrading organic matter to convert complex substances into simple substances, which contributes to their own nutrition.
To provide nutrients to the soil, which will be used by producers, plants, for their growth and development.

An example of this is the degradation of proteins by decomposers, providing nitrogen to the soil that will subsequently be absorbed by plants to synthesize their nutrients.

Learn more:

Decomposers in food chains brainly.com/question/2634998

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What is the density of a block of marble that occupies 277 cm3 and has a mass of 928 g? Answer in units of g/cm3 .

Evgesh-ka [11]

$V=277cm^{3}\\
m=928g\\\\
d=\frac{m}{V}=\frac{928g}{277cm^{3}}\approx3,35\frac{g}{cm^{3}}$

8 0

3 years ago

Calculate the pH of the following simple solutions:

IceJOKER [234]

Answer :

(1) pH = 1.27

(2) pH = 13.35

(3) The given solution is not a buffer.

Explanation :

(1) 53.1 mM HCl

Concentration of HCl = $53.1mM=53.1\times 10^{-3}M$

As HCl is a strong acid. So, it dissociates completely to give hydrogen ion and chloride ion.

So, Concentration of hydrogen ion= $53.1\times 10^{-3}M$

pH : It is defined as the negative logarithm of hydrogen ion concentration.

$pH=-\log [H^+]$

$pH=-\log (53.1\times 10^{-3})$

$pH=1.27$

(2) 0.223 M KOH

Concentration of KOH = 0.223 M

As KOH is a strong base. So, it dissociates completely to give hydroxide ion and potassium ion.

So, Concentration of hydroxide ion= 0.223 M

Now we have to calculate the pOH.

$pOH=-\log [OH^-]$

$pOH=-\log (0.223)$

$pOH=0.65$

Now we have to calculate the pH.

$pH+pOH=14\\\\pH=14-pOH\\\\pH=14-0.65=13.35$

(3) 53.1 mM HCl + 0.223 M KOH

Buffer : It is defined as a solution that maintain the pH of the solution by adding the small amount of acid or a base.

It is not a buffer because HCl is a strong acid and KOH is a strong base. Both dissociates completely.

As we know that the pH of strong acid and strong base solution is always 7.

So, the given solution is not a buffer.

5 0

3 years ago

Which laboratory activity involves a chemical change?

ipn [44]

Answer:

the answer is the first one (a)

5 0

2 years ago

Read 2 more answers

List three ways that energy could be lost between water and food

larisa [96]

Work allows energy to be transferred from one object to another. To do work, an agent must exert a force on an object over a long distance.

When work is done, energy is transferred from the agent to the object, resulting in a change in the motion of the object (more specifically, a change in the object's kinetic energy).

What is energy?

Energy is essential to human society and has numerous health benefits. However, each energy source poses some health risks. This article examines the health consequences of each major source of energy, focusing on those with the greatest global impact on disease burden. The harvesting and burning of solid fuels, coal, and biomass have the greatest health consequences, primarily in the form of occupational health risks and household and general ambient air pollution. In the world's poorest households, a lack of access to clean fuels and electricity poses a particularly serious health risk. Although energy efficiency has many advantages, energy use is essential to human society and has numerous health benefits.

To learn more about energy from the given link:

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5 0

1 year ago

Will give brainliest if correct

sergejj [24]

Answer:

A.....

Explanation:

Carbon dioxide plus water yields glucose (sugar) and oxygen.

4 0

3 years ago