Answer:
The correct answer is - option D. A person rubs a shoe on a rug, causing extra electrons to be transferred to the shoe.
Explanation:
Current electricity is a flow of charged particles that moves through space or any type of electrical conductor. Usually, the transfer of the electric current takes place through a wire. There are many examples of current electricity such as lightning and static electric charge.
Electric static charge is generated due to the imbalance of particles present on the surface or within the material, normally friction leads to this imbalance in particles of the material such as when a person rubs his shes on rug created an imbalance in the electrons and then transfer to the shoe.
Answer:
a change in pH diminishes the effectiveness ò the enzyme
Genetically modified food is food produced from plants or animals whose DNA has been altered through genetic engineering. These genetically modified organisms are often called GMOs for short.
Answer: Calcium: not enough calcium can lead to rickets, osteopenia and osteoporosis. Iodine: not enough iodine can cause goitre and other conditions like intellectual disability. Iron: children are at higher risk of iron deficiency than adults, mainly because children need more iron when they go through growth spurts
Explanation:
sand dunes and loess deposits
