(Question)
Q: What do you call the fast-moving air currents high in the troposphere? Choices: - stationary fronts - wind streams - cyclones - jet streams A:
(Answer)
jet streams

(Question)
Q: What type of cell contains a nucleus? Choices: - candid cell - endogenous cell - chloroplasts cell - eukaryotic cell A:
(Answer)
eukaryotic cell

(Question)
Q: Friendly bacteria live mostly in the large intestine and part of the small intestine, because what organ is too acidic? Choices: - skin - rectum - liver - stomach A:
(Answer)
stomach