Answer:
True.
Explanation:
The Swedish political scientist Rudolph Kjellen was the first to use the term "geopolitics" in his works in the late 19th century. It´s the analysis of the influence of geography on power relations in international affairs. In the geopolitical analysis, factors such as climate, topography, access to the sea and arable land are part of the analysis of the interaction between geography and political issues affecting nations´ life.
<span>b: New England and Middle</span>
Answer: 3) Confounding variable
Explanation:Confounding variable is the variable that indicates about the external influential factors that produces the manipulated consequences of independent and dependent variable.This variable can lead to producing useless outcomes in an experiment.
According to the question, the changes occurring in interest of student in algebra can be due to the outside factors which are not generating the actual results and thus, experiment is getting ruined.
Other options are incorrect because application variable remain same for the experiment,system variable are the variables of certain system and reliability variables describe about the variable on which dependent or stable.Thus, the correct option is option(3)
Answer:
Human activities cause erosion in a number of ways across the globe. Research has shown that humans are responsible for more erosion than natural processes.
1. Deforestation - it drastically causes an increase in the erosion rates as plant roots hold soil tightly that prevent erosion due to wind and water but cutting trees increases it. Plantation reduces erosions.
2. Agricultural practices have an impact on erosion rate. This promotes the likelihood of erosion, as the soil can be transported more easily due to wind and water.
3. Growing monocultures - one type of crop leads to an increase in erosion as nutrition and components of soil are drastically reduced. r
4. chemical fertilizers in agriculture can also increase soil erosion, as these chemicals damage, the flora, and fauna that live in the soil.
5. Mining/walking or biking and other practices can also contribute to erosion gradually over time. Mining exposed soil during this process.
