If pneumonia may be caused by an infection or smoke inhalation, then pneumonia may be caused by an infection or what? Answer choices: - smoke inhalation - Veins and arteries. - deadly and devastating - breathing deeply - clean air - expanding organs - the body's largest organ - Damages them
smoke inhalation

If melting does not change mass, then what does not change mass? Answer choices: - an object - gravity - density - bullfrogs - Energy. - blastoids - melting - volume
melting

Q: If many corals secrete an external framework that builds up to become a coral reef, then what do many corals secrete that build up to become a coral reef? Answer choices: - an external framework - The area was once underwater - that material's properties - bioaerosols - water - dust - after too much water received - oxygen
A: an external framework

Question: If mammals conserve body energy with their hair or fur, then what do mammals use their body hair or fur to conserve? Answer choices: - food - energy - warm - warmth - strength - sunlight - water - health
Answer: energy

*Question*
If fertilization occurs when gametes fuse, then fertilization occurs when _ fuse.? Answer choices: - fertile - sperm ducts - heat - eggs - seeds - gametes - pollen - ovaries
**Answer**
gametes

Q: If acactus stem is used for storing h2o, then what is a cactus stem used for storing? Answer choices: - H20 - carbon monoxide - CO2 - vinegar - rain - O2 - sunlight - h2o
A: h2o