(Q).
Q: What is the exchange of energy from one part of the universe to another called? Read this paragraph and choose the correct option from the provided answers: Heat is the exchange of energy from one part of the universe to another. Heat and energy have the same units. Choices: - cold - temperature - humidity - heat A:
(A).
heat

(Q).
Q: What is the lightest molecule? Read this paragraph and choose the correct option from the provided answers: Based on their molar masses, hydrogen is the lightest molecule, and oxygen is the heaviest. Because all three volumes are the same, each balloon contains the same number of gas molecules. Therefore, the hydrogen balloon will have the lowest mass, and the oxygen balloon will have the highest. Choices: - oxygen - helium - silicon - hydrogen A:
(A).
hydrogen

(Q).
Q: Unlike amphibians, reptiles do not have what stage? Read this paragraph and choose the correct option from the provided answers: Unlike amphibians, reptiles do not have a larval stage. Instead, newly hatched reptiles look like smaller versions of the adults. They are able to move about on their own, but they are vulnerable to predators. Even so, most reptile parents provide no care to their hatchlings. In fact, most reptiles don't even take care of their eggs. For example, female sea turtles lay their eggs on a sandy beach and then return to the ocean. The only exceptions are female crocodiles and alligators. They may defend their nest from predators and help the hatchlings reach the water. If the young remain in the area, the mother may continue to protect them for up to a year. Choices: - egg - reproductive - adult - larval A:
(A).
larval