GEOGRAPHY GRADE 11 UNIT SIX – SMART ETHIO E-Learning

Welcome to your GEOGRAPHY GRADE 11 UNIT SIX

UNIT SIX

1.

Which one of the following is incorrect?

A sustainable and environmentally friendly agriculture system needs to be developed to feed a growing world population only

When population pressure over land is low, the potential for ‘friendship between agroecosystem productivity and natural resource’ is high

Agricultural intensification is an increase in agricultural production per unit of inputs

Agricultural intensification is most critical when there is a need to expand the food supply during periods of rapid population growth

2.

Which one of the following is a mismatch?

Over-logging logged at a rate faster than reforestation

Overfishing fished down below the size that on average would support the long-term maximum sustainable yield

Over-drafting Ogallala aquifer is mined at a rate that exceeds the recharge rate

None

3.

Which one of the following does not belong to aquatic invasive species?

Emergent plants

Purple loosestrife

Floating weeds

Eichhornia crassipes

None

4.

._____is the phase of competing of the alien species through fast growth and efficient resource use

Naturalization

Dispersal

Colonization

Introduction

5.

Which one of the following is wrong about the vicious cycle between poverty and environmental degradation

Increasing poverty leads to increasing environmental degradation

Downward spiral relationship

Environmental destruction further exacerbates the extent and depth of poverty

None

6.

Which one of the following is different from the others

Loss of biodiversity

Deforestation

Respiratory problems, such as pneumonia and asthma

Scarcity of arable land, water, genetic resources, medicinal plants, and food crops