Answer:
Top left and top right squares: Tt
Bottom left and bottom right squares: tt
Cold dry air sinks below the warm wet air and it pushed upwards
Letter (A.)
Answer:
both right in own way
Explanation:
first;green house gas obviously helps to increase temperature of earth.
second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.
B. You can survive and get materials then find a way back