Why does breathing become difficult for humans during a tornado
A: The wind becomes fast and hot.
B: Air pressure gets steadily lower.
C: The black area moves closer.
D: They are knocked to the ground.
A: The wind becomes fast and hot.
B: Air pressure gets steadily lower.
C: The black area moves closer.
D: They are knocked to the ground.
举一反三
- Why does breathing become difficult for humans during a tornado A: The wind becomes fast and hot. B: Air pressure gets steadily lower. C: The black area moves closer. D: They are knocked to the groun
- A tornado does not form on the ground.
- When the diaphragm and external intercostals muscles contract, which<br/>of the following actions does NOT occur ____? A: Air moves into the lung B: The intrapleural pressure increases C: The diaphragm moves inferiorly D: The intrapulmonary pressure decreases
- Air tends to flow from a _______ pressure area to a _______ pressure. A: high, lower B: low, higher C: high, high D: low, low
- When the tornado touches the ground, it does ___________________. It usually touches the ground for only about _______________, and it usually travels along the ground for only about ________________, but during that one minute, buildings are __________, trees are ____________ out of the ground, small objects are ________________, and sometimes people are ___________or _________.