D. Cities offer a wealth of opportunities for citizens, including jobs, access, education, and healthcare.
Floods, hurricanes, tornadoes
It has the Nile river in the east, the Sahara desert and the Atlas Mountains which are in the west.
Planting more trees - the roots of trees hold the soil together and help to reduce soil erosion from wind and rain.
Improving the quality of the soil - this can be managed by encouraging people to reduce the number of grazing animals they have and grow crops instead. The animal manure can be used to fertilise the crops grown. Growing crops in this way can improve the quality of the soil as it is held together by the roots of plants and protected from erosion. This type of farming is more sustainable.
Water management - water can be stored in earth dams in the wet season and used to irrigate crops during the dry season. This is an example of using appropriate technology to manage water supplies in the desert environment.
Magic stones (or bunds) are circles of stones placed on the ground to hold water on the soil rather than letting it run quickly over the surface.
Drip irrigation is where water drips slowly onto the ground from pin-sized holes in a hose lying on top of the soil. This minimises water loss, maximises effectiveness and can be delivered via a solar pump.
Answer:
Option (2)
Explanation:
Glossopteris is defined as a fossil plant that existed during the Permian and Triassic period., which are about 250 million years old. The leaves of this plants are tongue-shaped and are marked by the midribs and reticulate type of venations. These are found to be present in the rocks of Southern continents such as Australia, India, Antarctica, South America and South Africa.
<u>This glossopteris fossil plants provides evidence for the continental drift</u> that has been taking place constantly over the geological time. This plant is found in almost all the southern continents, that were once all combined together.
Hence, the correct answer is option (2).
