If the gravitational pull of a natural satellite on Earth's oceans causes the tides, then the pull of what on the Earth's oceans cause the tides? Answer choices: - A yellow star - Time and energy - energy of moving objects - A natural satellite - flow of electrons - An artificial satellite - A red star - hydrogen and oxygen
A natural satellite

If reptiles have a backbone, then what has a backbone? Answer choices: - reptiles - four limbs - humans - the Sun - bacteria - insects - sponges - elephants
reptiles

Q: If operating an automobile creates gases by burning fuel, then what does an automobile create when it burns fuel? Answer choices: - Acids - tar - Energy. - heat - Gases - gas - sweat - energy
A: Gases

Question: If adult sponges are sedentary, then what are sedentary? Answer choices: - barnacles - fish - fur seals - animals - adult sponges - chickens - gazelles - birds
Answer: adult sponges

*Question*
If to reproduce, salamanders are assisted by their sense of smell, then in their quest for reproduction, salamanders are assisted by their what? Answer choices: - animals - kinetic energy - sense of irony - taste in clothing - fur and fat - sense of smell - chameleon - insects
**Answer**
sense of smell

Q: If green plants can be used to produce electricity by burning, then what can a plant be used to produce when it's burned? Answer choices: - toxins - energy - sun's heat - carbon dioxide - kinetic energy - heat energy - adding heat - Electricity
A: Electricity