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NikAS [45]
3 years ago
8

The agricultural practice of spraying insecticides leaves behind which pollutant in the soil? A. Chemical poison B. Excess nitro

gen C. Excess salt D. Acidic compounds
Chemistry
2 answers:
Hoochie [10]3 years ago
8 0
 Insecticides are <span> Chemical poisons.
</span><span>A. Chemical poison</span>
iren2701 [21]3 years ago
4 0

Answer:The correct answer is option A

Explanation:

The spraying of insecticides not only kills the insects harming the crops but also damages the fertility of the soil.

Development of new chemicals which are used as insecticides has polluted the soil with dangerous chemicals which are poisonous for living organism.

Extensive use of these chemicals has introduced these chemicals in the food chain and food web causing harm to living beings.

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I need help with science pls help me
ryzh [129]

Answer:

Explanation:

6. When insulating materials rub against each other, they may become electrically charged .

7. Charging by conduction involves the contact of a charged object to a neutral object.

8. Grounding is the process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size.

9. Grounding is the process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size.

6 0
3 years ago
A) Find the gas speed of sulfur dioxide at 100.0 degrees Celsius? ______________
gtnhenbr [62]

a. 381.27 m/s

b. the rate of effusion of sulfur dioxide = 2.5 faster than nitrogen triiodide

<h3>Further explanation</h3>

Given

T = 100 + 273 = 373 K

Required

a. the gas speedi

b. The rate of effusion comparison

Solution

a.

Average velocities of gases can be expressed as root-mean-square averages. (V rms)  

\large {\boxed {\bold {v_ {rms} = \sqrt {\dfrac {3RT} {Mm}}}}

R = gas constant, T = temperature, Mm = molar mass of the gas particles  

From the question  

R = 8,314 J / mol K  

T = temperature  

Mm = molar mass, kg / mol  

Molar mass of Sulfur dioxide = 64 g/mol = 0.064 kg/mol

\tt v=\sqrt{\dfrac{3\times 8.314\times 373}{0.064} }\\\\v=381.27~m/s

b. the effusion rates of two gases = the square root of the inverse of their molar masses:  

\rm \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }

M₁ = molar mass sulfur dioxide = 64

M₂ =  molar mass nitrogen triodide = 395

\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{395}{64} }=\dfrac{20}{8}=2.5

the rate of effusion of sulfur dioxide = 2.5 faster than nitrogen triodide

4 0
3 years ago
What evidence in Side View lets you know that upwelling is happening in these locations?
mojhsa [17]

Answer:

Image result for What evidence in Side View lets you know that upwelling is happening in these locations?

Winds blowing across the ocean surface often push water away from an area. When this occurs, water rises up from beneath the surface to replace the diverging surface water. This process is known as upwelling.

Explanation:

4 0
3 years ago
A student made this model of a carbon dioxide molecule. its has one carbon atom and two oxygen atoms what is the correct way to
ExtremeBDS [4]
The proper way to chemically write carbon dioxide is CO2
4 0
4 years ago
Read 2 more answers
2. Where can the oldest be found in this section of the ocean floor? Drag and drop an arrow to indicate this location
ira [324]

Answer:

The ocean

Explanation:

bc its 99% explored:))

8 0
3 years ago
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