*Question*
Q: What kind of weathering changes the size of a mineral or rock but does not change its chemical composition? Choices: - molecular weathering - chemical reaction - radiation - mechanical weathering A:
**Answer**
mechanical weathering

*Question*
Q: When fertilizer ends up in bodies of water, the added nutrients cause excessive growth referred to as what, which can render the water unfit for human consumption or recreation? Choices: - chemical bloom - caustic bloom - agricultural bloom - algal bloom A:
**Answer**
algal bloom

*Question*
Q: Mammals can feed at various levels of food chains, as herbivores, insectivores, carnivores and what else? Choices: - blood eaters - nematodes - vegetarians - omnivores A:
**Answer**
omnivores

*Question*
Q: Besides depth soundings, what else are bathymetric maps made of? Choices: - intensity data - solar data - density measures - sonar data A:
**Answer**
sonar data