Study, analyze and explain the resultant force of several strong strength in the same plane towards the object
.Resultant force acting on a stationary object or objects moving with constant speed, reflection of light, the refraction and the knowledge to use. The effect of light with humans and other creatures absorption of light.The knowledge utilization characteristics of soil layer shear properties of soil formation and soil. Utilization and improvement of soil process. Characteristics and elements of rock. Composition and properties of rocks.And the knowledge to use. The physical characteristics of the mineral and its application process was born. The characteristics and properties of petroleum, coal. Oil shale, and use the natural water.The water on the soil, groundwater, the process to decompose with erosion, transportation, deposition, crystallization and the effect of the process. The model and the structure and composition of the world
.
การแปล กรุณารอสักครู่..
