They are like an effect <span>on the local and global </span>weather<span> systems on the earth</span>
Answer:
(a) Mean yearly temperature = 10.58
(b) 
Explanation:
Given:
The attached chart
Solving (a): The mean yearly temperature.
This is calculated as:




Solving (b): The mean July temperature.
From the chart:

Assuming you asked a question, a land form smaller than a continent surrounded by water would be an island.
Ir is the third opinion, 100km area
Abyssal Plain I think. Sorry if it’s wrong.