The motives for European countries to do Imperialism were minerals, crops, and land. For example, in the first photo, European countries went to Africa to get their crops and minerals, increasing trade and livelihood. Also, the second picture for motives shows African land, which European countries colonized for power, so other European countries wouldn't get them first
The effects of European imperialism is slavery and the destroying of the African culture. In the first photo, it shows Africans working in a plantation. The European countries would make the slaves grow their crops and have them work in very hard conditions. In the second photo, it shows that a culture can be destroyed by another's culture. The Europeans had taken the Africans lands and changed their way of living.