The correct answer is The rotation of the Earth
Explanation:
Besides orbiting around the Sun which leads to seasons, Earth is all the time rotation on its axis, this movement occurs eastward and the movement is completed every 24 hours, due to this, a day is considered to last 24 hours. Besides this, due to the rotation of Earth different zones or areas in the planet are directly exposed to the sunlight during different periods, which leads to daytime and nighttime, considering daytime as the period in which a zone is illuminated by the Sun while in the nighttime the zone remains in the dark. Additionally, this phenomenon also explains why daytime and nighttime do not occur at the same time on all Earth. Thus, it is the rotation of the Earth the one that causes Earth to experience daytime and nighttime.
Answer:
The correct answer would be B, the cultivation of less land.
Explanation:
Cultivated land is arable land that is worked by plowing and sowing and raising crops. For example, ploughland, plowland, tillage, tilled land, tilth, and farmland. A decrease in land cultivation would result in less plowing and sowing, therefore creating a decrease in the rate of erosion.
Answer:
Blank 1 : Methane
Blank 2: Carbon dioxide
Explanation:
A rotting biomass would emit a huge proportion of methane. Microbes work on waste products and releases methane and other gases. Methane is the primary biogas obtained from a decaying biomass. Methane can be used as a source of fuel for both industrial and domestic purposes.
Burning of biomass would produce carbon dioxide to a large extent. Methane produced would fuel the burning process so as to release significant amount of carbon dioxide.
Answer: The presence of seeds that need light to germinate in the farm.
Explanation:
There are some specie of seeds that germinate best when they are exposed to light.
If these seeds are covered in soil, it is very likely they they will remain dormant and not sprout until conditions improve.
These seeds only needs to be pressed onto the surface of the soil where they can easily access sunlight and kept moist to germinate.
Once the light from the Sun hits this seed they obtain the required energy needed for them to germinate.
Therefore when the farmer ploughed the field he was unknown to him, exposing the seeds to the much needed light.
