Sedimentary rocks are formed by deposition, and limestone is a type of sedimentary rock. Given these facts, which rock is formed by deposition among the following options: - soft soil - barrel-shaped - rivers - Limestone - calcite - In sediment - Sand dollars - coral reefs
Limestone

Apan is used for cooking food by heating food in it on a stove, and many of foods that humans eat are cooked, recooked, and then warmed up. Given these facts, what do humans use a pan and stove for among the following options: - agriculture - To send microwaves - To eat the pan as food - Stove competitions outdoors - living things - electricity - Electrical energy - Cooking and eating.
Cooking and eating.

Q: Poison causes harm to living things, and arsenic compounds are poisonous. Given these facts, what causes harm to living things among the following options: - arsenic compounds - a pathogens - tapeworms - deforestation - deoxyribonucleic acid - Pesticides - cigarettes - fossil fuels
A: arsenic compounds

Question: Migration is a type of movement that changes population size, and predatory animals migrate with the game animals. Given these facts, when game animals move elsewhere, what else does among the following options: - relocation - prey animals - predatory animals - migratory birds - An object is seen - migrants - refract or absorb. - barks and snarls
Answer: predatory animals

*Question*
Amagnet moving in a coil of copper wire can cause an electric current, and an electric current is a flow of electric charge. Given these facts, what is caused by moving a magnet in a coil of copper wire among the following options: - heat is produced - flow of electric charge - kinetic energy - exposure to cold - light energy - electron transport - electromagnetic energy - heat production
**Answer**
flow of electric charge

(Q).
Feathers help birds fly and provide insulation, and some birds are flightless birds. Given these facts, why do the flightless have feathers among the following options: - layers of fat - Sublimation - it needs them - warm-blooded - Air conditioning - Radiation - Insulation - protect them
(A).
Insulation