Answer:
When a volcano erodes and the solidified conduit is exposed, it is referred to as a volcanic <u>neck</u>
Answer:
Agriculture is the main source of food, income, and employment of our country. ... Agriculture has been the highest priority because economic growth was dependent on both increasing the productivity of existing crops and diversifying the agricultural base for use as industrial inputs.
OR
Modern agriculture is an evolving approach with innovations in farming practices that helps in increasing agricultural efficiency and reduce the loss of natural resources. By applying this modern technology, farmers are gaining more profits and able to increase their productivity of field.
Some of the modern techniques like selected variety of hybrid seeds of a single crop; bio-fertilizers and bio-pesticides; technologically advanced equipment and energy subsidies in the form of irrigation water are commonly employed by the farmers. The sensors used to detect moisture in the soil help farmers to create irrigation systems for crops based on soil moisture and temperature. Working in low visibility field conditions like rain,dust and fog is possible with the help of modern technologies. Agricultural robots automate agricultural processes of fruit picking, crop harvesting, soil maintenance, irrigation, ploughing, planting, weeding and others. These robots automate slow and repetitive tasks for farmers to ensure focus on improving overall production yields. Land-augmenting technological changes involve technical, chemical and biological modifications to beintroduced in agriculture.
Viscosity is the ability of a substance (in this case, lava) to resist flow. First of all, the temperature of the lava affects the viscosity. Lava with a higher temperature has lower viscosity than cooler lava (higher viscosity) since cooler lava is starting to solidify thereby increases its resistance to flow. The composition of the lava is also a determinant of viscosity such as the silicon content of the lava. The higher the silicon content of the lava, the higher the internal friction of the lava, thereby higher resistance to flow.
Answer:
C. There is more usable freshwater below the earth's surface than there is above it.
Explanation:
A. Most of earth's freshwater is found in lakes and rivers.
Although lakes and river are one of the surface water that house the highest percentage of fresh water (about 0.3%) but most of the earths fresh water are not found in lakes and rivers but are found in ground water and ice caps and glaciers. This statement is definitely not true.
B. Almost half of the water in the U.S. is used for mining and industry.
According to USGS(US geological survey) most water usage in the US is for thermoelectric power and irrigation followed by public supply before the use for mining and industry comes in. The statement is wrong to say almost half of the water in the US is used for mining and industry.
C. There is more usable freshwater below the earth's surface than there is above it.
Fresh water in ground water constitute about 30.1 % fresh water found in the earth. In fact some of the fresh water found on surface water bodies like rivers migrated from ground water. Groundwater is the largest reservoir of usable fresh water. The statement is correct and it is true.
D. Water is called the "universal solvent" because it dissolves in most other liquids.
Water is regarded as a universal solvent because it dissolves more substances than any other liquid not because it dissolve in most other liquids.
Yes africa si south of anartica
