WorksheetsHuman Environment Interactions (Sub-Saharn Africa)
Total questions: 25
Worksheet time: 19mins
How has human activity affected the Sahel?
New land management techniques have opened new fields
Forests are gradually replacing the grasslands.
Farming has allowed people to grow new crops on the land.
Poor use of resources has made the soil less fertile.
What is desertification?
when a desert takes over the rainforest
the process by which fertile land becomes desert
eating as much dessert as you want
lack of rainfall
What question does the theme: Human Environment Interaction ask?
How do humans negatively impact the earth?
What is the relationship between humans and the environment?
How are humans and their environment similar?
Why are the Rainforests being destroyed?
diseases carried by insects
Wildfires
tropical storms
human demand for wood and farmland
Which human activity would have a negative impact on the earth?
Reforestation
preserving endangered species
burning fossil fuels for energy
Using alternative energy sources
Building dams is an example of?
Adapting to the environment
Depending on the environment
Modifying the environment
Loving the environment
Although Africa is a large, diverse area, it has little fertile soil. Drought, disease, and insects threaten Africa's crops. What must Africans do to capitalize on their land as a resource?
They must concentrate on diamond trade instead of farming.
They must develop irrigation techniques and disease-resistant crops.
They must develop trade areas in order to learn to survive rough conditions.
They must mine for gold and accept the fact that their land cannot be farmed.
It is difficult to grow crops in much of inland Africa MAINLY because of the region's lack of
soil.
sun.
land.
water.
Polluted water from a factory has flowed into a river. The water pollution will affect the river in all of the following ways EXCEPT
increasing the number of fish that live in the river.
increasing the amount of poisons in the water.
decreasing the drinkability of the water supply.
increasing the possible number of sick children who live near the river.
Extensive commercial logging, the use of wood for cooking and heating, and excessive clearing of land by subsistence farmers has led to __________________ in most areas of Sub-Saharan Africa.
erosion
deforestation
desertification
water pollution
Which is an effect of deforestation?
an increased number of animal species due to the land that has been cleared
a decrease in the number of floods since there are less trees to trap rainfall
an increased amount of soil erosion and poor soil quality due to a lack of roots and nutrients
a larger variety of agricultural products since there are less trees to take out nutrients in the soil
Which statement BEST describes the effects of drought, desertification, and erosion on the people who live in the Sahel on the edge of the Sahara Desert?
These factors have led to warfare between tribes in the region.
These factors have caused a great migration of people from the region.
These factors have caused the United Nations to declare the region endangered.
These factors have led to hunger in the region because of a lack of arable land.
To supply water through ditches, pipes, or canals to areas without water for growing crops
Desertification
Irrigation
Poor sanitation
Economic development
Poor water quality in Africa
is mostly a result of industrial pollution
can be solved by irrigation in Africa's dry areas
is mostly a result of sewage and garbage
can be solved by building more dams
Slash and burn agriculture is mainly harmful to Africa because it
pollutes the soil used for farming.
causes deforestation in the rainforest.
worsens the unequal distribution of water.
increases the number of parasites in the rivers.
Poor water quality increases
crop harvests.
life expectancy (how long someone lives).
economic development.
waterborne diseases
Several countries in Africa are rich in oil. However, no country on the continent has more oil than...
Somalia
Nigeria
South Africa
Chad
The downside of oil in Nigeria include: (Select all that apply)
There are no downsides of oil in Nigeria.
When price of oil drops, Nigeria makes less money.
When price of oil drops, projects that were started might go unfinished.
The money made from oil does not always help the people who need it.
Illegal hunting is called...
trophy hunting.
...poaching.
...poching.
...porching.
True or False. The oil spills and fires in Nigeria usually occur because government officials and vandals try to syphon off oil or gas to sell it.
True
False
