Solve these clues to fill the grid.
- An interval during which a recurring sequence of events occurs
- 1 Across
- A fertilizer that is derived from animal or vegetable matter
- 4 Across
- A monosaccharide sugar that has several forms
- 8 Across
- The quantity of something that is created
- 11 Across
- A chemical compound that is added to protect against decay or decomposition
- 13 Across
- Any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings (plural)
- 14 Across
- Any of a group of organic substances essential in small quantities to normal metabolism (plural)
- 15 Across
- Farm bird that lays eggs
- 2 Down
- A device that produces electricity
- 3 Down
- A chemical substance derivable from a mold or bacterium that can kill microorganisms and cure (plural)
- 5 Down
- The secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has
- 6 Down
- A person who operates a farm
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- That which is pleasing or valuable or useful
- 8 Down
- A light soft silver-white metallic element of the alkali metal group
- 9 Down
- A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas
- 10 Down
- The yield from plants in a single growing season (plural)
- 12 Down
