If energy-saving is important when electrical energy is used to produce light, then energy-saving is important when electrical energy is used to produce what? Answer choices: - sound - a stove - crops - light - oil - motion - Heat - waves
light

If fuligo septica causes a fungus on rotting compost, then what does fuligo septica create? Answer choices: - fossils - alveoli - pollen - Fungus - seeds - bushes - fungi - a cuticle
Fungus

Q: If genes are instructions that tell cells what to do, then what tells a cell what to do? Answer choices: - breathe - alleles - Energy - voltage - fever - genes - nerves - state
A: genes

Question: If eating something that contains lead has a negative impact on an organism 's survival, then eating something that what has a negative impact on an organism 's survival? Answer choices: - contains water - Smoking - contains fiber - contains nutrients - harmful substances - influenza - Pesticides - contains lead
Answer: contains lead

*Question*
If flowing water can slowly dissolve carbon in sandstone, then flowing water can slowly dissolve carbon in what? Answer choices: - oil - water - crust - ice - loose dirt - sandstone - precipitation - loose soil
**Answer**
sandstone

(Question)
If glass is used for refracting light, then what is used to refract light? Answer choices: - glass - stone - a wave - fibers - tube - copper - rocks - sand
(Answer)
glass