1. Nuestra atmósfera es gas nitrógeno. 2. Los animales y las plantas no pueden utilizar directamentetodo el nitrógeno que se encuentra en la . 3. Sólo unas bacterias especiales pueden utilizardirectamente el nitrógeno de nuestra atmósfera y "arreglarlo" para que otros organismospuedan beneficiarse. Estas bacterias se llaman . 4. Las bacterias fijadoras de nitrógeno, por el procesode pueden cambiar a el a una formagaseosa de nitrógeno. 5. En otra parte del ciclo, los animales comen plantas que contienen nitrógeno, que nuevamente es devuelto al suelo por los de animales o y en descomposición.

the correct answer is - d. china has a large and growing population.

the fact that china has a large (the biggest) population, and it is still growing, doesn't hinder the agriculture production in the country. in fact, it can for increased production in the agriculture, since there's more labor force, as well the sheer mass of people produces lots of scientists that come up with new inventions as to how to improve this sector. nice example is the inner mongolia region in china, in general dominated by the gobi desert, but few scientist came up with a nice idea as to how to make the region productive by using plants that are very resistant to droughts, so lots of people have been employed, and the region is becoming greener and greener each year, and the production of food in this region is also increasing.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.