I=y because it is in the middle of a continent makeing it have less rain also ore changing of temperature

III is z because it is an island making it have a lot of rain also the sorrounding water acts as a moderating influnence and it’s on the equator making it the hottest

that leaves II for x and it works the coast provides the moderating influence but it’s a bigger island so you don’t have the area as closely sorrounded

of xy and z y does reason is stated above

the sun is directly over head at the tropic of cancer 23.5 n therefore that area is the hottest at the current time and the 30oc happens on land because the land has a lower specific heat then the water therefore it heats up hotter than the water

answer is in the explinations of xy&z

you should have this explained to you rather than just asking for the answer it will help you more in the long run