Answer:
The correct answer is - C. sqoop.
Explanation:
The Sqoop is tool created to changing or transfer in between a relational database and Hadoop HDFS servers. This tool import the data from the hadhoop to relational system and then export relational system to hadoop file system. It is command line interface application tool that helps in importing and exporting.
Thus, the correct answer is - option C
Answer:
The proper matching is given below.
Explanation:
Predation Typical plant defence include(thorns,sticky substances) and chemicals(toxin,bad tastingchemicals) adaptation.
Competition When individuals fight for a common resource,the weaker one experience loss or affected adversely.
Disease pathogens can be transmitted to host by direct contact between hosts o through soil,water,air or any other surface.
Symbiosis This interaction is of three types : mutalism,Commensalism and parasitism.
Density = Mass divided by Volume, or d = m/v.
So, replace the m and v with the amounts given:
d = 0.5.
Density = Mass / Volume
Answer: Plant vegetation so that their roots hold the soil firmly.
Build walls around the farm area.
Add natural fertilizers to the soil.
Soil erosion is a process of removal of top layer of soil which get sediment at some other place due to the affect of agents like wind and water. The superficial upper layers of soil are rich source of nutrients and organic matter and active region for germination of seeds and plant growth. Soil erosion removes these superficial layers making soil less fertile or not fertile and less useful for plant growth.
Plants growing in a vegetation have roots which can hold the soil and will prevent soil erosion from wind and water or any other agent. Building of walls around the farm area will prevent flood water to get inside the farm area and hence, prevents soil erosion by water. Addition of natural fertilizers to the soil adds up nutrients to the soil which facilitate plant growth and plant roots hold the soil therefore, prevents soil erosion.
Answer:
4 is gravitational force
Option B
Explanation:
This is a force diagram of a block on an inclined plane.
The force component is what makes up weight in the diagram. Weight is given as mass multiplied by the gravity.
Gravitational force acts downward and it is the force of attraction between all objects and the earth. It is directly proportional to mass.
Force 1 and 2 are both shear forces that acts parallel to the face of the incline. They are mostly expressed as frictional forces.
