Answer:
(i) The demand for
labour in places where labour was in short supply?as in America and
Australia?led to more migration.
(ii) Nearly 50
million people emigrated from Europe to America and Australia in the 19th
century.
(iii) All over the
world some 150 million are estimated to have left their homes, crossed oceans
and vast distances over land in search of a better future.
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