Q: What is the name of the the most efficient possible engine? Choices: - excitation engine - diesel engine - ventilation engine - carnot engine A:
carnot engine

(Question)
Q: Why does the heating element of a toaster get hot so quickly? Choices: - charged battery - magnetic force - good insulator - good conductor A:
(Answer)
good conductor

Ques: Q: What is a three-dimensional anticline called? Choices: - cave - volcano - cyclone - dome A:
Ans: dome

(Q).
Q: What is driven by the sun's energy and moves water over the surface of earth? Choices: - sun cycle - tides - weather cycle - the water cycle A:
(A).
the water cycle

Ques:Q: Most fungi reproduce asexually by producing what? Choices: - seeds - ions - toxins - spores A:

Ans:spores

Ques: Q: Respectively, which parts of the circulatory system carry blood from the heart toward capillaries, and return blood to the heart from capillaries? Choices: - parasites and veins - arteries and capillaries - organs and veins - arteries and veins A:
Ans:
arteries and veins