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mixas84 [53]
3 years ago
9

Microorganisms and humus have little impact on soil health. Please select the best answer from the choices provided T F

Chemistry
2 answers:
egoroff_w [7]3 years ago
7 0

First of all what the heck to the other guy that answered. And the correct answer is FALSE :))

hram777 [196]3 years ago
6 0

The right answer is false, they have great impact on soil health.

In general, microorganisms play a fundamental role in the fertility of the soil (production of the minerals necessary for the plant: N, P, K, etc.) and the study of their activity is therefore important. In addition, certain bacteria participate in the release and transformation of metals in the soil and thus contribute to increasing or reducing the toxicity of heavy metals (nickel, cobalt, etc.).

Humus is essential in the function of soil production.

Humus is used primarily as a "pantry" for plants, and also plays a vital role in structuring the soil.

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The movement of fluid materials caused by density differences
Dovator [93]
This movement is known as convection or convection currents. This occurs due to the fact that warmer fluid is of lower density than colder fluid. This causes warmer fluid to rise and colder fluid to sink. This creates circulatory currents within the body of the fluid.
8 0
3 years ago
What are 6 types of energies except Potential and Kinetic energy.
aivan3 [116]

Answer:

The different types of energy include thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy and gravitational energy.

Explanation:

Hope this helps :D

7 0
3 years ago
: An unknown metal crystallizes in the cubic crystal structure. The metal has a radius 140pm, atomic mass of 135 g/mol, and dens
ki77a [65]

The cubic unit cell  this metal crystallize as is BCC structure .

<h3> What is unit cell ?</h3>

The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell.

The unit cell consists of lattice points that represent the locations of atoms or ions.

The entire structure then consists of this unit cell repeating in three dimensions

\rm \rho =\dfrac{nM}{N_{0} a^{3}} \\\\\\\\\rm n =\dfrac{\rho N_{0} a^{3}}{M} \\\\\\\\Assuming\; it \; to \; be \; a\; BCC\; structure \\\\\\ r = \dfrac{\sqrt{3} \times a}{4} \\\\\\Therefore\; a = 3.23 \times 10^{-8}\\\\\\\\\rm n =\dfrac{13.3 \times 6.022 \times 10^{23}\times 3.23^{3}\times (10^{-8})^{3}}{135} \\\\

n= 2

Hence our assumption was correct

It is a BCC structure .

Therefore the cubic unit cell  this metal crystallize as is BCC structure .

To know more about unit cell

brainly.com/question/13110055

#SPJ1

5 0
2 years ago
.1 Write 'a' 'an' or 'the' where is necessary.
kolezko [41]
The answers

A) a
B) a
C) an
D) the
5 0
3 years ago
HELP FAST!!!
AfilCa [17]

Answer:

the fourth one I think....m

Explanation:

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7 0
3 years ago
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