Awarm front causes cloudy and rainy weather, and if warm air is advancing on cold air, the front is designated a warm front. Given these facts, warm air advancing on what causes cloudy and rainy weather among the following options: - streams. - streams - Movement - flooding - coastlines - rivers - rainfall - cold air
cold air

Polyps usually reproduce asexually, and cnidarians have two basic body forms, medusa and polyp. Given these facts, what can reproduce asexually among the following options: - trees - roots - cnidarians - the Sun - Most plants - humans - dogs - orchids
cnidarians

Q: Bacteria cause food to spoil, and water can be tested for coliform and fecal coliform bacteria. Given these facts, what causes food to spoil among the following options: - contamination - influenza - coliforms - toxins - disease - Dehydration - Pollution - Pesticides
A: coliforms

Question: Water vapor condensing in clouds causes rain, and humidity is the amount of water vapor in the air. Given these facts, condensation in the air and humidity are caused by among the following options: - Sun - kinetic - heat - Joules - climate - sweat - boiling - water
Answer: water

*Question*
Oil is formed by layers of sediment pushing down on decomposing algae, and when the algae dies it is decomposed by bacteria. Given these facts, what do the actions of sediment and bacteria create among the following options: - diamonds - harm - vegetable oil - soil - coal - oil - lake - bogs
**Answer**
oil

Q: Competition may lead to aggressive behaviors or displays of aggression, and human mating behavior also involves some competition. Given these facts, human mating may lead to among the following options: - population decline - improved eyesight - earthquakes - It helps them survive - heat produced - aggressive behavior - produce offspring - biological diversity
A: aggressive behavior