1. The gas that plants feed on is _______ (during photosynthesis).   Nitrogen   Oxygen   Carbon Dioxide   Hint Half-n-half Clue   2. The scientific biological name for the family of grasses is _______.   Grevineae   Germineae   Gramineae   Half-n-half Clue   3. The _______ of rhubarb and celery plants are eaten by man.   roots   stems   leaves   Half-n-half Clue   4. The seeds of coniferous trees are contained in the _______.   cones   fruits   flowers   Half-n-half Clue   5. Which of the following is not a deciduous tree/shrub?   Elm   Holly   Sycamore   Larch   Oak   Half-n-half Clue   6. Wheat and other kinds of corn can be classified as cereals.   True   False   7. Which of the following conifers is not an evergreen?   Spruce   Larch   Pine   Cedar   Fir   Half-n-half Clue