The correct answer is option Observations can be made from outside the "system".
The study of the plate tectonics allows the observation of the movement of the plate tectonics. These observation can be study to determine the pattern of the movement from outside the plate tectonics system and the event occurring due to plate tectonics can be predicted.
Answer:
B. generation of rich organic fertilizer.
Explanation:
Compost and fertilizers are different. There is a simple way to distinguish between compost and fertilizers. Compost feeds the soil, and fertilizer feeds the plants. Fertilizer adds to the soil for nutrient supplying purpose to the plants. But compost helps to increase the microbial activities of the soil, which improves the health of the soil.
Answer:
photosynthesis and the erosion of limestone
Answer:
Option-B
Explanation:
The brain is an organ composed of neurons which controls all the voluntary and involuntary of animals. In humans, the brain is located in the skull where the brain is suspended in a fluid called cerebrospinal fluid.
As humans ages and becomes old aged, the neurons in the brain losing their ability to perform their function, if they are lost they cannot be regenerated.
The lesions appear on the white matter of the brain and the brain shrink. Due to these known and other unknown features, the process controlled by these neurons become inadequate and shows slower brain processing and weak memory.
Thus, Option-B is the correct answer.
Groundwater is the largest available source of freshwater, followed by lakes, rivers, reservoirs and wetlands. Groundwater refers to all subsurface water.
