Boiling means change from a liquid into a gas by adding heat energy, and boiling water produces steam. Given these facts, what causes water to become steam among the following options: - Condensation - movement of tectonic plates - Increasing pressure - an engine - evaporation - heating liquids - Reducing temperature - Adding heat energy
Adding heat energy

Plant reproduction requires pollination, and insects and hummingbirds are the primary pollinators. Given these facts, insects and hummingbirds are required for what to reproduce among the following options: - fish - bees - herds - growth - courtship - plants - mating - nutrients
plants

Q: Treating water is used to remove harmful substances before drinking, and boiling is the safest method of treating water. Given these facts, what can be done to water to remove harmful substances before drinking among the following options: - evaporation - vaporization - Dipping a magnet into it - hydration - Mixing in heavy metals - Cooking - Boiling it - Adding purified water to it
A: Boiling it

Question: Populations of viruses do not grow through cell division because they are not cells, and influenza is a disease caused by viruses. Given these facts, the cause of what doesn't grow by cell division among the following options: - drought - Influenza - resistance - adding heat - Leptospirosis - fungi - bacteria - heat produced
Answer: Influenza

*Question*
Pushing on the pedals of a bike cause that bike to move, and bike commuting truly is green but bike commuting is difficult. Given these facts, green what can be accomplished through pushing on pedals among the following options: - commuting - Plants growth - walking - driving - Heart rate - running - horse-riding - Movement
**Answer**
commuting

Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, and acid rain can destroy soil. Given these facts, gasses from burning coal can lead to what among the following options: - soil destruction - nuclear power - Electrical energy - Pollution - grass - flow of electrons - radio waves - heat energy
soil destruction