Fact 1: Alight bulb requires electrical energy to produce light. Fact 2: Solar-powered lights that use LED bulbs provide the most efficient and most hours of light at night. Given the two facts above, answer the question "In order to operate at night, solar-powered LED lights require what?" with the following options: - sun's heat - electrically - adding heat - focusing a lens - hydrogen and oxygen - kinetic energy - electrical energy - direct energy
electrical energy

Fact 1: Conserving resources has a positive impact on the environment. Fact 2: Use of resources affects the environment such as pollution. Given the two facts above, answer the question "How do you reduce pollution?" with the following options: - igniting fuel and oxidiser - transportation technology - wasting - not recycling - burning fossil fuels - converting electricity to heat - water conservation - using less resources
using less resources

Q: Fact 1: Hydropower requires damming a river. Fact 2: Scientists agree that dams devastate rivers. Given the two facts above, answer the question "what does hydropower require doing to a river?" with the following options: - power stations - water conservation - storing water - to move people - devastating it - a hydraulic system - dangerous - heating liquids
A: devastating it

Question: Fact 1: An electrical insulator slows the transfer of electricity. Fact 2: Plastic is an insulator of electricity. Given the two facts above, answer the question "Plastic slows the transfer of what?" with the following options: - genetic material - electricity - clouds - energy - heat energy - sunlight - reduced heat - force
Answer: electricity

*Question*
Fact 1: Flowing water can slowly dissolve carbon in sedimentary rock. Fact 2: Rivers are long flowing waters. Given the two facts above, answer the question "what can slowly dissolve carbon in sedimentary rock?" with the following options: - an ion - rivers - a solute - rain - oil - sodium - fens - SO2
**Answer**
rivers

Fact 1: Introns are regions that do not code for proteins. Fact 2: Prokaryotes lack introns, whereas eukaryotes contain introns. Given the two facts above, answer the question "Prokaryotes lack regions that do not code for proteins, while this type of living being has them:" with the following options: - bioaerosols - layers of fat - orchids - animals - critical organs - sensory neurons - eukaryotes - it needs them
eukaryotes