Africa - Free MCQ Practice Test with solutions, Grade 7 SST

Africa's biodiversity is primarily supported by its varied climates and habitats, which include deserts, savannas, rainforests, and mountains. This diversity allows a wide range of flora and fauna to thrive in different environments.

The savanna grasslands of Africa are characterized by scattered trees and a mix of grasslands. They support diverse wildlife, including large herbivores, and have distinct wet and dry seasons that influence the ecosystem.

The Namib Desert is recognized as the oldest desert in the world, having been arid for at least 80 million years. Its unique ecosystems support rare plants, such as the Welwitschia, that have adapted to its extreme conditions.

Lake Victoria is Africa's largest lake, covering approximately 69,000 square kilometers. It is part of the Nile River system and is crucial for the livelihoods of millions who depend on its resources.

African rivers play a critical role in supporting local communities by providing water for drinking, irrigation for agriculture, transport routes, and sustaining biodiversity in both inland and coastal ecosystems, making them vital for livelihoods.

The Nile River is the primary water source for agriculture in Egypt, providing essential irrigation to support farming in a predominantly arid region. Its annual flooding historically deposited nutrient-rich silt, enhancing soil fertility.

The East African Plateau is a significant geographical feature of East Africa, characterized by its high elevation and volcanic activity, including Mount Kilimanjaro, which is Africa's highest peak at 5,895 meters.

The Congo River is recognized as the world’s deepest river and the second longest in Africa. Its depth supports a rich aquatic ecosystem and plays a crucial role in the region's transportation and economy.

The Great Rift Valley is primarily a result of tectonic activity, where tectonic plates are pulling apart. This geological phenomenon has created a unique landscape with deep valleys, lakes, and volcanic mountains.

The Indian Ocean borders Africa to the southeast. This ocean is crucial for trade routes and has a diverse marine ecosystem that supports numerous species and livelihoods along the African coast.

Africa covers about 30.2 million square kilometers, making it the second largest continent. This vast area represents roughly 20% of the world’s total land area, highlighting the continent's significant size.

The Ethiopian Highlands are significant as they represent Africa's largest continuous plateau. This area is crucial for agriculture and supports diverse ecosystems, contributing to the continent's overall biodiversity.

Egypt is situated in North Africa, known for its rich history and significant contributions to civilization, including the ancient pyramids and the Nile River, which has been vital for its agriculture.

The Nile River is recognized as the world's longest river, stretching 6,853 kilometers. It plays a vital role in agriculture and is a key water source for millions of people in Egypt and Sudan.

The Kalahari Desert is characterized as an old desert with wind-shaped sand masses and supports various life forms despite its arid conditions. It is known for its unique landscapes and diverse wildlife.