1. The gas that plants feed on is _______ (during photosynthesis).   Carbon Dioxide   Nitrogen   Oxygen   Hint Half-n-half Clue   2. The _______ of rhubarb and celery plants are eaten by man.   leaves   stems   roots   Half-n-half Clue   3. Which of the following is not a deciduous tree/shrub?   Holly   Oak   Sycamore   Larch   Elm   Half-n-half Clue   4. Which of the following words/phrases is generally not applicable to plants?   Organic Food   Green   Transpire   Stationary   Mineral Food   Half-n-half Clue   5. The seeds of coniferous trees are contained in the _______.   flowers   cones   fruits   Half-n-half Clue   6. The organic material contained in soil is known as humus.   True   False   7. Which of the following is not a herbaceous plant?   Marigold   Clover   Daisy   Sycamore   Buttercup   Half-n-half Clue