Final answer:
A person in China would also see a crescent Moon on the same night as someone in Toronto, as the Moon's phase is a global phenomenon observed similarly from any location on Earth where the Moon is visible.
Step-by-step explanation:
If you see a crescent Moon tonight in Toronto, someone in China would also see the crescent Moon on the same night. The Moon phase is seen similarly from any location on Earth on the same night because the phase is determined by the positions of the Moon, Earth, and Sun in space, which affects the amount of sunlight that reflects off the Moon and is seen from Earth.
The Moon's phases are global phenomena, and at any given time, everyone on the dark side of the Earth who can see the Moon will see the same phase. So when it is night in China, and the Moon is visible, it will be in the same phase as it is for viewers in Toronto. The only difference would be due to the time difference and the rotation of the Earth, which might lead to observing the Moon at different times of the night. However, the phase does not change rapidly, so within a single night, the observed phase would remain consistent.