There's four stages in the classical demographic transition model:
Stage 1 - Pre-transition
In this stage, the birth rates are very high, but also the life expectancy is very low, thus the growth of the population is slow.
Stage 2 - Early transition
In this stage, the birth rates are very high, but the life expectancy is increased, so the population grows rapidly.
Stage 3 - Late transition
In this stage, the birth rates decline slightly, and the life expectancy is a bit higher, thus the population growth is slowing down.
Stage 4 - Post-transition
In this stage, the birth rates are declined significantly, the life expectancy is pretty high, so the population is either growing very slowly, or it is declining.
Answer:
Yes topography can affect communication and civilization
Answer:
a. What are the most considerable impacts you make
Explanation:
- Earth is the only planet that is capable of life in the solar system and it provides a sustainable environment for life forms and the non-living forms and has constant recycle of the materials in the ecosystem and involves the following components as water, nitrogen and carbon and sulfur and the phosphorus and the elements that impact the lifestyle of these cycles are the how we sue the resources and there impacts on the on earth ecological systems.
Many scientists feel that application of Geoengineering would not reduce the amount of greenhouse gases in the air.
Explanation:
Geoengineering or climate engineering includes a wide range of technological applications that are aimed to counter climate change and global warming.
These include solar geoengineering for blocking the sunlight before it warms the earth’s surface, ocean fertilization, artificial trees etc. The main drawback that scientists fear is the usage of various chemicals because of which these technologies would not reduce greenhouse gas.
Further imposing tax regulations or simply signing climate protocols would not reduce greenhouse gases. They are just for gaining emission incentives and people will easily evade regulations.
The main focus should be on cutting down anthropogenic emission of greenhouse gases. Hence all the industries, technologies, and the people must pledge work towards reducing the greenhouse gases
.