*Question*
If ferns are helped by wind in reproduction, then what helps ferns in reproduction?  Answer choices: - cell wall  - Fruits  - wind  - pollen  - sun  - seeds  - nectar  - earthquakes
**Answer**
wind

*Question*
If chemical weathering gives a rusty red color to sedimentary rocks, then what gives a rusty red color to sedimentary rocks?  Answer choices: - food coloring  - The area was once underwater  - chemical weathering  - remains of prehistoric life  - deoxyribonucleic acid  - sea urchins  - dirt  - earthquakes
**Answer**
chemical weathering

*Question*
If irradiating food can be used to kill something that causes fermentation in the food, then irradiating food can be used to kill what in the food?  Answer choices: - Something that causes attraction  - one celled organisms  - Something that causes fermentation  - Something that causes digestion  - microscopic building blocks  - single-celled organisms  - Microscopic organisms  - Something that causes evaporation
**Answer**
Something that causes fermentation

*Question*
If some aviary species fly and others swim but, all are endothermic tetrapod vertebrates, then some aviary species fly and others swim but, all endothermic tetrapod vertebrates share what trait?  Answer choices: - warm-blooded  - Weight  - fur and fat  - sweating  - Epidermis  - feathers  - retina  - four limbs
**Answer**

feathers