If the Columbia River Gorge was formed through erosion over long periods of time, then what was formed through erosion over long periods of time? Answer choices: - Columbia River Gorge - a hydraulic system - swamp vegetation - Mississippi River delta - the Moon - Calcium carbonate - the Himalayan mountains - permineralization
Columbia River Gorge

If ears are used for sensing sound by animals, then what are used for sensing sounds by animals? Answer choices: - ears - echolocation - birds - fibers - toads - the nose - Frogs. - the blood
ears

Q: If pushes and pulls can change the movement of something or have it remain stationary, then what can change the movement of something or have it remain stationary? Answer choices: - rolling around - pulling chains - a hydraulic system - remaining motionless - kinetic energy - friction - Electrical energy - pushes and pulls
A: pushes and pulls

Question: If light causes images to be retained on the retina, then where are images retained? Answer choices: - Retina - RNA - calcite - an object - arteries - energy - squids - segmented
Answer: Retina

*Question*
If sporangia produce spores that develop into green, photosynthetic gametophytes, then sporangia produce spores that develop into what gametophytes? Answer choices: - peachleaf willow - green photosynthetic - Chlorophyll - photosynthesis - Most plants - graptolites - members of their own species - in the autumn season
**Answer**
green photosynthetic

*Question*
If burning fuel converts chemical cnergy into light and heat energy, then what converts chemical energy into light and heat energy? Answer choices: - Firecrackers - breathing - burning fuel - eating food - warmth - condensing fuel - Green beans - cigarettes
**Answer**
burning fuel