Answer:
d
Explanation:
many of them become certified
Answer:
The magnitude of the magnetic field is 0.156 T.
Explanation:
Given that,
Speed of a proton, 
Radius of the circular path, r = 0.2 m
When the proton enters in the circular path, the centripetal force is balanced by the magnetic force such that :
q is the charge on proton
Here, 
So, the magnitude of the magnetic field is 0.156 T. Hence, this is the required solution.
Answer: option A, B, C at correct
Explanation:
All animals have collagen. Collagen is found exclusively in all animals. It is the main structures protein that is found in the connection tissues of animals.
Animals do possess embryos that undergoes gastrulation where the digestive cavity and germ layers are formed, these then develop into certain tissue systems, organs etc
Animals are heterotrophs in that they are unable to symthesize their own food but rather depend on plants which are autotrophs for their food and they also lack cell wall which differentiates them from plants. Not all animals are mobile for example, sponges.
1. weathering reduces solid rocks to smaller and smaller particles and erosion is the removal and movement of rocks/debris. so u could say that weathering breaks rocks down and erosion takes it away
2. water, wind, gravity
3. vegetation reinforces soil through growing over the loose soil to prevent erosion
1. - loss of fertile land and increased sedimentation in rivers
2. deforestation, agriculture, human induced climate change
