Contact between rocks over long periods of time causes rocks to smooth, and first, limestone is a strong rock. Given these facts, what causes limestone to smooth among the following options: - contact - coffin - hair - erosion - bacon - rainfall - friction - loose soil
contact

(Question)
Amphibians have a relatively complex circulatory system with a three-chambered heart, and toads and frogs are both amphibians. Given these facts, what has a three chambered heart among the following options: - alpacas - goats - elms - bats - orchids - mammals - a fish - toads
(Answer)
toads

Ques: Apan is used for cooking food by heating food in it on a stove, and healthful Meals Eat a grain food at every meal . Given these facts, where does a pan usually heat meals among the following options: - started - Winter - homes - made - Sun - oil - cooled - stove
Ans: stove

(Q).
The sun causes water to evaporate more quickly by adding heat, and high humidity can cause mildew, while dry heat and direct sunlight can cause drying and cracking. Given these facts, the sun causes water to evaporate more, which can cause drying and what among the following options: - flooding - raining - Pollution - root growth - erosion - snowing - cracking - hailing
(A).
cracking

Ques:Most fungi get organic compounds from dead organisms, and all fungi are obligate heterotrophs. Given these facts, obligate heterotrophs get organic compounds from what organisms among the following options: - soil - seeds - plants - life - sugar - food - dead - trees

Ans:dead

Ques:Some light bulbs convert electricity into light and heat energy, and electrical energy is also energy. Given these facts, what do some light bulbs convert other energy into among the following options: - water vapor - basic building blocks of life - gasoline - light and heat energy - an electron microscope - plasma - heat or cold - hydrogen and oxygen

Ans:
light and heat energy