Why is there a higher rate of skin cancer in Australia than in other
parts of the world?

In Austrailia there is the highest rate of skin cancer because there is so much sunlight and most austalians have the wrong skin type for thier environment meaning people with pale skin get burnt more easily

Explanation:

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects