He is an American playwright, screenwriter, and theatre and film director
You need to make a clear distinction:)
Answer:
a bar that slides to lock something
Explanation:
They are told to close something most likely a window and when you close something you usually must lock it
Answer:
..
Explanation:
you can maybe write what you use everyday
Air is a homogeneous mixture.
Heterogeneous mixture means that the components are not evenly distributed, just like a mixture of sand and water where we can identify the individual components visually.
