The following statements apply:
1. Salt is not chemically bonded to water.
2. The ratio of salt to water may vary.
3. Salt and water retain their own chemical properties.
The solution formed by dissolving salt in water is an example of a mixture, it is a physical change and no new substance is formed. The salt and the water are not chemically bonded and salt can easily be recovered from the water by mean of evaporation. Any amount of salt can be dissolved in the water and each of the component, that is, salt and water still retain their individual chemical properties.
Answer:
Human has 4 chambers, and most reptiles have 3 chambers in their heart
Explanation:
your question in Romanian translated roughly What is the difference between a human and reptile circulatory system?
Answer:
So, the correct option is 'The causative HIV retrovirus reduces the number of T-helper lymphocytes'.
Answer:
you need to provide more information cause what exactly am i supposed to select from
The correct option is C, THAT IS, OZONE.
CFC acts as catalyst, which enable oxygen to react rapidly with ozone, leading to the destruction of the ozone layers. The whole process is a series of free radical reactions that occur in five stages. A single molecule of CFC can destroy as much as 100,000 ozone molecules. Depletion of ozone layers has grave consequences such as skin cancers, eye damages, etc.
