So weather is basically day to day forecast (rain, sun, clouds) while climate is the all forecasts of an area over years. That’s a simple answer but I hope it helps!
Answer:
the increase in size lead to to high ratio hence the large the surface area
I would say keep the soil from eroding and doesn't let it get dried out so fast.
Glucose and oxygen!!!
CO2 + Water in the presence of sunlight results in glucose + oxygen