Answer: B. Minerals in the soil can eventually be used for plant growth and production.
The soil productivity is greatly influenced by the minerals that is abundant in a specific area. For an instance, the land with high concentration of limestone is more fertile because of its higher ph.
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With the firing on Fort Sumter, the American Civil War was officially upon both the North and the South. A war that lasted four years and cost the lives of more than 620,000 Americans and freed 3.9 million people from the bondage of slavery.
Jacob's consumption increased by <u>$12,000</u>.
<h3>What is the marginal propensity to consume?</h3>
The marginal propensity to consume is defined as the proportion of an increase in income that a consumer consumes instead of saving.
<h3>Data and Calculations:</h3>
Amount of disposal income in 2019 = $30,000
Amount of consumption in 2019 = $20,000
Increased disposal income = $40,000
Marginal propensity to consume = 0.8
Increase in consumption = $12,000 ($40,000 x 0.8 - $20,000)
Thus, Jacob's consumption increased by <u>$12,000</u>.
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