Carbon cycle contains an important stage called Carbon fixation. This stage - Carbon fixation changes carbon dioxide into organic compound
such as glucose. Which of the following organisms cannot fix carbon? *
1. grass
2. maple trees
3. algae
4. mushrooms

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error? the object is an asteroid, not a dwarf planet.the object is a moon, not a dwarf planet.the object is not a dwarf planet because it travels with other objects.the object is not a dwarf planet because it is round.