Energy is used for heating a building by a heating system, and radiators are used to heat the building, The energy source is oil. Given these facts, what do radiators use to heat buildings among the following options: - coal - CFCs - Solar power - Oil - Oxygen - hot - Hydrogen - fuse
Oil

Aging occurs as cells lose their ability to divide, and cell division is by mitosis . Given these facts, aging occurs because of a loss of what among the following options: - wrinkles - the skin - mitosis - glucose - eyesight - density - Energy - alleles
mitosis

Q: Mutation creates new genetic variation in a gene pool, and fertilization increases genetic variation. Given these facts, the gene pool expands through fertilization and: among the following options: - offspring - agriculture - mutation - babies - seeds - zygotes - relocation - competition
A: mutation

Question: Soil can be depleted of nutrients, and food and minerals are both nutrients. Given these facts, soil can be depleted of what among the following options: - scarce resources - vegetation - food and minerals - Organic compounds - harmful substances - aquatic life - phylum - mammals
Answer: food and minerals

*Question*
Friction causes an object to lose energy, and lubricating reduces the friction and prevents heat damage to the mono. Given these facts, what does lubrication prevent among the following options: - permineralization - Losing energy - harmful substances - prolactin release - Pollution - sweating - contamination - Greenhouse gasses
**Answer**
Losing energy

*Question*
Athermal insulator slows the transfer of heat, and insulation helps to block conduction of heat. Given these facts, what prevents conduction among the following options: - water - sweating - glass - layers of fat - wind - insulator - a cuticle - conductor
**Answer**
insulator