Fact 1: Melting means changing from a solid into a liquid by adding heat energy. Fact 2: Ice Sculptures melt away. Given the two facts above, answer the question "What causes ice sculptures to turn to liquid? " with the following options: - UV rays - Snow - salt and water. - Heat energy - air cools - kinetic energy - Subzero temperatures - Water expanding
Heat energy

Fact 1: Genes that are located on the same chromosome are called linked genes. Fact 2: For example, epilepsy and splay leg tend to link with the vienna white gene. Given the two facts above, answer the question "Epilepsy and splay leg are located on the same what?" with the following options: - organ - Joules - kalenchoes - sensory neurons - chromosome - nerves - critical organs - four limbs
chromosome

Q: Fact 1: Amphibians have a relatively complex circulatory system with a three-chambered heart. Fact 2: Frogs, toads and salamanders are amphibians. Given the two facts above, answer the question "Which animal has a circulatory system with a three-chambered heart?" with the following options: - animals - Salamander - fur seals - mammals - alpacas - a fish - warm-blooded - barnacles
A: Salamander

Question: Fact 1: Excretion is the process of removing wastes and excess water from the body. Fact 2: Excretion refers to the processes by which the body eliminates a drug. Given the two facts above, answer the question "What eliminates wastes and excess water?" with the following options: - recycling - hydration - evaporation - loose soil - bacteria - the body - Exfoliation - Cooking
Answer: the body

*Question*
Fact 1: Treating water is used to remove harmful substances before drinking. Fact 2: Chlorine is also used to treat water. Given the two facts above, answer the question "what is also used to remove harmful substances from water before drinking" with the following options: - electricity - pressure - air - bacteria - a pathogens - toxins - Chlorine - Cooking
**Answer**
Chlorine

Fact 1: Evolution occurs in response to a change in the environment. Fact 2: Different environments Life is a changing phenomenon. Given the two facts above, answer the question "Evolution occurs in response to what in life?" with the following options: - static events - global warming - that material's properties - changing phenomenon - major threat to health - changing tides - Animal survival - isolated events
changing phenomenon