Soil erosion is defined as the wearing away of topsoil. Topsoil is the top layer of soil and is the most fertile because it contains the most organic, nutrient rich materials. One of the main causes of soil erosion is water erosion, which the loss of topsoil due to water.
It’s a hazardous industrial waste (DDT)
Answer:
Global cultivated area on the planet is not increasing significantly, due to high efficiency modern farming practices - True
Henry Wallace is regarded as the father of the Green Revolution - False
Modern agriculture is no longer an environmentally intrusive human activity - False
Approximately 20% of U.S. workers are employed on farms. - False
Explanation:
Global cultivated area on the planet is not increasing significantly, due to high efficiency modern farming practices. - This is one of the reasons, albeit not the only one.
Henry Wallace is regarded as the father of the Green Revolution. - The father of Green Revolution is Dr. MS Swaminathan. He improved the production of crops and promoted sustainability.
Modern agriculture is no longer an environmentally intrusive human activity. - Pollutants, problems with irrigation and degradation of the soil are issues in the modern agriculture.
Approximately 20% of U.S. workers are employed on farms. - According to USDA is 11%.
We are more intellegent than adults
The Moon of the Earth has some similarities, but also lot of differences with the other natural satellites in the Solar system.
The Moon is rocky, covered with dust, has lot of craters from asteroids and meteorites. Most of the planets in the solar system are actually gassy, frozen, and the craters tend to be very rare.
Compared to the planet around which it spins, the Earth, the Moon is actually very large, even though it is nowhere as large as some other moons in the Solar System. All the other moons tend to be much smaller in comparison the the planets around which they spin.
The Moon also has very low gravitational pull and very small mass for its size, and the reason for that is still not clear. All the other moons have gravitational pulls and masses that are expected by their size.
