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olchik [2.2K]
3 years ago
12

"tobacco smoke is responsible for what percentage of lung cancer deaths?"

Biology
1 answer:
-BARSIC- [3]3 years ago
7 0
It has been estimated that active tobacco smoking causes close to 90% of lung cancer cases and is the cause of 87% of lung cancer deaths.
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How do the bonding properties of carbon atoms result in the large variety of carbon based molecules in living things
Elden [556K]
Carbohydrates dissolve in water and lipids don't. Explain how the bonding properties of carbon atoms result in the large variety of carbon-based molecules in living things<span>. </span>Carbon atoms<span> are able to form 4 </span>types<span> of covalent bond which ends up as molecules</span><span>.</span>
7 0
3 years ago
What do ferromagnesian (mafic) minerals have in common? List three examples of mafic minerals?
saveliy_v [14]

Ferromagnesian minerals are minerals that have iron or magnesium in their structure. The greater specific gravity is between 3.2 and 3.6. Some examples are pyroxene, biotite, garnet, and olvine.

Most mafic minerals are dark in color, and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and biotite. Common mafic rocks include basalt, diabase and gabbro. Mafic rocks often also contain calcium-rich varieties of plagioclase feldspar.

3 0
3 years ago
Give reasons :
lesantik [10]

Answer:

a) It is dangerous to wear nylon clothes while cooking because it is a synthetic cloth and they catch fire easily also they can stick on our body which is very painful.

b) Cotton is a natural product. And unlike synthetic fibres, it is more absorbent. The towel hence has high absorbency.

c) Nylon and polyester are two fabrics most commonly used in raincoats and umbrellas. They are not absorbent the way natural fibers are. They naturally resist waterlogging, and can be made waterproof.

4 0
3 years ago
Can a species switch from being an r-species to a K-species or visa versa?
patriot [66]

Answer:

as causas de las extinción de una especie pueden ser muchas, como la destrucción de su hábitat natural, la caza o captura de animales exóticos, la contaminación, la deforestación (la desaparición de los bosques por la tala de árboles) o el cambio climático, que son consecuencia de la intervención de los seres humanos. Aunque esto también puede relacionarse con distintos fenómenos naturales como inundaciones, incendios, o la llegada de enfermedades.

Explanation:

En algunas ocasiones y por diferentes motivos, las especies de animales empiezan a desaparecer, y esto se conoce como extinción. A pesar de que escuchamos esta palabra muy a menudo, alguna vez te has preguntado, ¿por qué una especie se extingue y qué pasa cuando esto sucede?

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3 years ago
Diseases That relate to teens That are connected to the excretory system...
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Aids just being honest
7 0
3 years ago
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