If fire requires activation energy to get started, then what does fire require to get started? Answer choices: - an engine - activation energy - water - energy usage - direct energy - dogs - activated almonds - adding heat
activation energy

If when a river floods, that river harms farm and grazing lands, then when a river floods, that river harms what? Answer choices: - most organisms - Basic units of the plant body. - streams and volcanoes - mountains and lakes - farm and grazing lands - oceans and ponds - swamp vegetation - Plant growth is reduced
farm and grazing lands

Q: If mildew can affect the respiratory system, then what can affect the respiratory system? Answer choices: - Pollution - mildew - gas - influenza - oxygen - bacteria - smallpox - gold
A: mildew

Question: If aground can be used as a conductor, then what can a ground be used as? Answer choices: - Metling snow - energy - protect them - conductor - support - watershred - storing water - watershed
Answer: conductor

*Question*
If estimating the age of trees is done by Dendrochronologists, then dendrochronologists do what with regards to tree age? Answer choices: - lie about age - support - observe it - estimate age - begin age - focusing a lens - reinforce age - genetic diversity
**Answer**
estimate age

(Q).
If the simplest eukaryotes have motility, then what do simple eukaryotes have? Answer choices: - Energy - fur and fat - Motility - bioaerosols - four limbs - pollen - glucose - Energy.
(A).
Motility