In the carbon cycle, the process of photosynthesis______ atmospheric , and cellular respiration______ atmospheric .

Because fossil fuels are the remains of once living organisms, they contain reservoirs of______ that are released into the atmosphere when they are burned.

A(n)______ represents the interactions of biological communities and the abiotic factors within the inhabited location.

The phenomenon called is due to the impact of climate change that is killing miles of coral reefs in the tropics.

Completar la fraseChoose the correct indefinite or negative expression to complete the following sentences. WRITE ONLY THE LETTER in the blank.   1.No fuimos _____________ al mar con Marcos.     a.nada               b.nunca  c.no        2.______________ damos un paseo ______________ vamos a un concierto esta tarde.    a.Sí… sí               b.o… o  c.algo… algo        3.______________ está caminando por la calle.    a.Algún               b.Algo  c.Alguien        4.No vi a ______________ en el agua.    a.tampoco               b.nunca c.nadie         5.No quiero ______________ para comer, gracias.    a.nada               b.nunca c.ningún        6.Nosotros ______________ hacemos nuestra tarea después de clase.    a.algo               b.siempre c.alguien        7.Nunca me das ______________ regalo.     a.ningún               b.ninguna c.nada        8.No me llevas ______________ a la discoteca ______________ al cine.    a.no… no               b.nada… nada c.ni… ni        

Climate change can influence the ecosystem levels. However, these influences do not impact the communities of organisms.

In the carbon cycle, the process of photosynthesis______ atmospheric , and cellular respiration______ atmospheric .

Because fossil fuels are the remains of once living organisms, they contain reservoirs of______ that are released into the atmosphere when they are burned.

The phenomenon called is due to the impact of climate change that is killing miles of coral reefs in the tropics.

A(n)______ represents the interactions of biological communities and the abiotic factors within the inhabited location.