| 100% | KELP | 4 | Large brown seaweed whose ash is a source of iodine |
| 42% | OLIVETREE | 9 | Plant whose fruit is a source of cooking oil (2 wds.) |
| 37% | ITASCA | 6 | Lake that is a source of the Mississippi |
| 37% | TAP | 3 | Bathroom fixture which is a source of water |
| 37% | PINES | 5 | Coniferous trees that are a source of timber |
| 36% | COD | 3 | Fish which is a source of vitamin-rich oil |
| 36% | YAK | 3 | Its milk is a source of chhurpi (Nepalese cheese) |
| 36% | KELP | 4 | Seaweed source of iodine |
| 35% | CROCI | 5 | Flowers that are a source of the anti-inflammatory drug colchicine |
| 35% | CBRADIO | 7 | Source of a large, colorful lingo |
| 34% | COD | 3 | The oil in its liver is a source of omega-3 fatty acids |
| 34% | PAROS | 5 | Greek island that was a source of fine white marble in ancient times |
| 34% | WIKIPEDIA | 9 | Online source of information whose name is a portmanteau of the Hawaiian word "wiki" and "encyclopedia" |
| 34% | FUSION | 6 | Mr. ___, gadget from "Back to the Future" that is a source of sustainable energy |
| 34% | LIGER | 5 | Large hybrid cat whose counterpart is a tigon |
| 34% | LAKE | 4 | ___ Victoria, waterbody in the Tanzanian and Ugandan forests that is a source of the Nile |
| 33% | LANOLIN | 7 | Source of a foul odor when wool is washed |
| 33% | ASEA | 4 | ___ is a large body of salt water: 2wds. |
| 33% | POTASSIUMIODIDE | 15 | Kelp is a natural source of it |
| 33% | PROTEIN | 7 | Soy is a good source of it |
| 33% | IRON | 4 | Spinach is a good source of this |
| 33% | VITAMINA | 8 | Carrots are a good source of it |
| 33% | ZINC | 4 | Oysters are a good source of it |
| 33% | MAORI | 5 | People whose language is the source of "kiwi" |
| 33% | BAKER | 5 | One whose job is a piece of cake? |
| 33% | DECIMAL | 7 | Fraction whose denominator is a power of ten |
| 33% | APE | 3 | Animal whose name is a synonym of "parrot" |
| 33% | BAKER | 5 | Someone whose job is a piece of cake? |
| 33% | MALI | 4 | Country whose name is a homophone of "Molly" |
| 33% | CEDAR | 5 | Tree whose name is a homophone of "seeder" |