Answer:
the vaccine causes the immune system to produce antibodies to the virus that causes the measles
Answer: It is important that we use our natural resources so that we use any bad things for our earth
Explanation:
Answer:
From the air
Explanation:
For plants especially its the sunlight. The animals then eat the plants transferring the carbon into their bodies.
Answer: If a solution is an acid, then it will have a pH below 7, and if the solution is a base, it will have a pH above 7 since the pH value is determined by the concentration of H+ and OH– ions.
Explanation: