A. Carbonic acid with limestone
Tibialis anterior.
Explanation:
Tibialis anterior is the muscle of lower limb that originates from the upper two-third of lateral surface of tibia and attaches the heel (calcaneous ) via heel cord and plantar.
When the knee is extended, this muscle results in flexing of the foot .
This injury also functions in keeping the balance of the body when we are standing or even when we are walking.
Answer: erosion
Erosion is the process of removal and displacement of surface soil particles by the effect of wind, water or chemical agent. The sediments due to the effect of these agents gets displaced to locations other than the one where their parent rock or soil originated. A sand dune can be defined as the accumulation of grained sized sand into the shape of ridge by the effect of wind under the influence of gravitational force exerted by the earth. Dunes are formed when the loose sand is blown by wind. Therefore, sand dune is the erosion of sand by wind. Sand dunes are formed in deserts, beaches, barren fields and semiarid regions.
Scientists combine several well-testedtechniques to find out the ages of fossils. The most important are Relative Dating, in which fossils and layers of rock are placed in order from older to younger, and Radiometric Dating, which allows the actual ages of certain types of rock to be calculated.