Elemento quìmico que conforma la materia orgánica viva o muerta.
ciencias

Quiz
•
Science
•
6th Grade
•
Hard
Miriam Pivaral
Used 8+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxìgeno
Carbono
Nitrógeno
Agua
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elemento quìmico liberado durante la fotosìntesis que losa seres vivos utilizan para obtener energìa.
Nitrògeno
Carbono
Oxìgeno
Nitrato
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elemento quìmico muy abundante en la atmòsfera: Sin embargo en forma gaseosa no es ùtil para los seres vivos
Agua
Nitrògeno
Oxìgeno
Amonio
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ârea en las raìces de algunas plantas que provee el ambiente adecuado para las bacterias fijadoras de Nitrògeno
Humus
Nòdulos
Materia orgánica
Materia atmosférica
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Extracciòn de flores en un bosque en un nùmero mayor al de su reproducciòn
Explotaciòn comercial
Destrucciòn del habitat
Sobreexplotaciòn
Especies invasoras
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Transformaciòn de selvas y bosques en campos agrìcolas y ganaderos.
Destrucciòn del habitat
Sobreexplotaciòn
Introducciòn de especies invasoras
Caza comercial ilegal
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Captura de animales silvestres, como guacamayas, para destinarlos como mascotas.
Caza comercial ilegal
Explotaciòn comercial
Destrucciòn del habitat
Sobreexplotaciòn
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