Answer and Explanation:
It is true fact that organic matter in soil diminishes with time yet it is unseemly to utilize this information for lab manual since we make heaps of changes to recoup natural issue in the dirt before going for another period of editing. Notwithstanding when the yield is reaped, the buildup of the previous harvest goes about as a natural fuel for the following yield. Here and there when we develop vegetable harvest, it rather adds minerals to the soil.
But if there is comparison between earlier soil and current soil, I figure it would be nearly increasingly precise for the as of late cleared soil since here, we can quantify the exhaustion of natural issue plainly. while the soil which had been cultivated and prepared for horticulture before, there probably come different changes because of enormous number of factors.l
Answer: 1- Option (D)
2- Option (A)
Explanation:
The green house gases plays a significant role in the earth's global temperature. In absence of green house gas, the earth would have been very much cold and life would would be difficult to exist. The average global temperature would have been about -15°C to 25°C. So the most favorable answer given here is that the<u> earth's temperature would have decrease by about 60°C</u>.
<u>Carbon dioxide (CO₂) is not the most abundant green house gas</u>. It is the second most abundant. The present composition of CO₂ in the atmosphere is about 0.04% by volume. A small increase in the CO₂ level, can lead to a global rise in the temperature. Hence, <u>the above statement is false.</u>
The land area of Australia is about the same size as the land area of the continental United States. The correct option among all the options given in the question is option "D". Australia is the sixth largest country in the world in respect to its size. Russia, Canada, Brazil, USA and China have a larger area than the continent of Australia.
Answer: Tin, gold, copper, nickel, coal, petroleum are major natural resources in Southeast Asia.
Explanation:
Bands of soft rocks like clay and sand are very weak in which they can be eroded very quickly. Since cliff and coastline doesn't erode at the the same pace, an inlet of the sea to where the land curves inward forming a bay. Once soft rocks are eroded inward, the hard rocks are able to stick to the sea to form a headland
