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2 years ago

What is the difference between food web and food chain and what do they have in common?

Chemistry

1 answer:

abruzzese [7]2 years ago

7 0

A food web is a system of interlocking and interdependent food chains.

A food chain is a hierarchical series of organisms each dependent on the next as a source of food.

Basically, the difference of the two is that a food web contains multiple different species in the same level that eat the animal below it's status. A food chain is one after the other.

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A filament for a light bulb needs to conduct electricity. Which of the elements listed below might be useful as a light bulb fil

horrorfan [7]

Answer:

A. tungsten

Explanation:

Tungsten is a material which high melting point ie. does not melt easily incase of high temperature

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2 years ago

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Determine the number of moles of gas in a 4.1L container at 341K with a pressure of 1.78 atm.

lozanna [386]

Answer:

0.26 mol

Explanation:

using general gas equation

PV=nRT

V=4.1litre= 4.1 dm³

P= 1.78 atm

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3 years ago

Write the complete balanced equation for the following reaction: S8 + O2 yields SO3

aleksklad [387]

S8 + 12O2 yields 8SO3

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2. Explain what an isotope is and give two important physical properties of isotopes that make them useful in biological researc

katrin [286]

Answer:

<h2>isotope is a variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.All isotopes of a given element have the same number of protons but different number of neutrons in each atom.</h2>

<h2>The 2 important physical properties of isotope is</h2>

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2 years ago

Ozone located in the troposphere is _______. A. Considered a pollutant b. Beneficial to living organisms c. Higher in concentrat

Aleonysh [2.5K]

The presence of ozone in the troposphere has been considered as pollutant. Thus, option A is correct.

The atmosphere has been divided into five layers based on the availability and the composition of different elements.

<h3>Troposphere</h3>

The troposphere has been the lowest layer of the atmosphere. It has been closed to the earth surface and provides with clouds and maintain weather.

The gases on the troposphere are used by the organisms for living purpose. The ozone has been a harmful gas for living organisms.

Thus, the presence of ozone in the troposphere has been considered as pollutant. Thus, option A is correct.

Learn more about troposphere, here:

brainly.com/question/201658

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2 years ago