In fact, since the Moon is constantly rotating on it's own axis, there is no area of the planetoid which is permanent darkness, and the far side of the Moon is only completely devoid of sunlight during a Full Moon - when the Sun is facing the Moon with the Earth in between.
Answer:
great increases in agricultural productivity
Explanation:
The goal and aim of the drip irrigation method is to cut the volume of water used for irrigation. Usually, normal irrigation involves channeling water into a field in order to provide another option for limited water regime in an area. This procedure wastes water a lot and can cause fertilizers to reach ground water systems. Sometimes, if not correctly applied, they can wash nutrients away from the soil into nearby water bodies.
Israel developed a drip water system which directly applies water in form of drips to farm crops instead of flooding the whole field. This will help to save more water and prevent ground water pollution. Adoption of this method has led a spike in Israel's agricultural productivity and more water has been conserved for other use.
Answer:
Option (1)
False
Explanation:
The mid-oceanic ridge is one of the main features in the divergent plate boundary. Seafloor spreading takes place along this ridge, where the lithosphere becomes thin because of the uprising magma. The magma erupts at the surface forming a ridge which is commonly known as the mid-oceanic ridge.
As the magma melts at this ridge due to the decompression process, it solidifies and forms young basaltic igneous rocks. These are geologically the youngest rocks. With the increasing distance right from the mid-oceanic ridge, the age of the rocks increases.
Thus, the correct answer is option (1).
At this mid-oceanic ridge, when the magma erupts at the seafloor, it is comprised of magnetic minerals, which shows a specific pattern in the orientation of the earth's magnetic polarity. This forms alternate stripes, that starts from the mid-oceanic ridge and eventually expand outward. This pattern of earth's magnetic polarity is found in all the mid-oceanic ridges on earth.
Hence the given statement is false.
I believe that 70% is your answer. (source: answers)
