Answer:
The sand is supplied to the beach more slowly than it is lost to the deep waters. This prevents sand beaches from forming.
Explanation:
The formation of sandy beaches depends on a set of environmental forces that must interact with each other. These forces are summed up by the speed at which the sand is added to the solid part of the beach and the speed at which the sand is taken by the deep waters. This justifies the reason why sandy beaches are not formed in Acadia, because the speed at which the sand is captured by the deep waters, is greater than the speed at which the sand is added to the solid part of the beach.
Answer:
Coal is made by heating of woody plant material, and oil is made by heating of algae.
Explanation:
The coal and the oil are both fossil fuels. They have both been very important for the development that the humans have experienced since the Industrial Revolution as they were what provided the energy needed for this process, and they still do.
The coal is a fossil fuel that has formed from woody material, mostly from the Carboniferous forests. Once these forests collapsed, they were quickly covered with water, mud, and sediments. Over time they were covered with even more sediments, so they were getting deeper into the crust. As they were getting deeper into the crust this material was exposed to higher temperatures and pressures, leading to the formation of the coal over the course of millions of years.
The oil is a fossil fuel that has formed from the remains of the marine life, mostly algae. As the algae and the other marine organisms have been dying out, they have fallen on the bottom of the oceans, quickly being covered with the soft sediments. As more and more sediments have been placed on top of them, they too were getting deeper into the crust, so they were also exposed to higher temperatures and pressures, eventually leading to the formation of the oil over the course of millions of years.
Once energy is produced in the core of the Sun, it needs a way to travel from the solar center to the outer regions. ... In the radiation zone of the Sun the temperature is a little cooler than the core and as a result some atoms are able to remain intact.
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.
