Nitrogen from animal wastes or plant an animal tissue O must be fixed near leguminous plants,
O is lost from the system.
O is fixed by bacteria and fungi in the soil.
O is already fixed and can be used.

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above

Isotopes of the same element have differ in their