Viruses that only use bacterial cells as host are identified as bacteriophages.
<h2>Answer:</h2>
- Ionic bond: It is the bond formed by the complete transfer of electron from one atom to an other atom.
- Covalent bond: It is the bond formed by the mutual sharing of the electrons.
- Van der waal: These are weak interactions between one molecules with other polar or non polar molecules to hold to each other by weak force of attraction.
<h2>Explanation:</h2>
- <u>Similarities between van der waal, ionic bonds and covalent bonds:</u> All of them are a type of inter-molecular forces, in which ionic bonds are stronger than covalent bond and van der walls forces. And covalent bonds are stronger than van der wall forces.
- <u>Difference between van der waal and ionic bonds:</u> Ionic bonds are formed by complete transfer of electrons from one atom to an other atom. Covalent bond are formed by sharing of electrons while in van der waal, there is a slight attraction when oppositely charged molecules come close to each others.
Result: Van der wall forces are weakest among ionic and covalent bonds.
Answer: The sun generates energy from a process called nuclear fusion.
Explanation: I hopes this helps you out.
Dementia refers to deterioration of intellectual abilities caused by an organic brain disorder.
<h3>What is dementia?</h3>
- In dementia, a person loses memory, has trouble in reasoning and solving problems and other such symptoms which interfere in the normal activities of an individual.
- It is caused due to brain cell damage which hinders the brain cells in interacting with each other while generating responses.
- Dementia is not a distinct disease but is caused due to a variety of medical conditions especially Alzheimer’s disease.
- Symptoms can be managed by medications and therapy but there is no proper cure of dementia in later stages.
- Certain factors which increase the risk of dementia are smoking, diabetes, aging, alcohol abuse.
- A person even has difficulties in remembering the name of close ones.
Learn more about dementia here:
brainly.com/question/7809599
#SPJ4
No need for evacuation but continue groundwater monitoring due to lower dose of toxic substance.
No need for evacuation, continue groundwater monitoring because the dose of toxic substance in a normal or safe range. In this range the toxic substance can't affect the health of people who drink that water.
If the dose of toxic substance increases more than 10 mg/ kg then the toxic substance killed people who drink that water. According to the graph, we can see that the dose is in a normal range so we can conclude that no need of evacuation for the people.
Learn more: brainly.com/question/24926735
