The correct answer would be the second option. The correct plan for his experiment would be that the temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables. To determine the degree of damage of the acid it would be best that the amount of acid is the manipulated variable while everything else are assumed constant.
Answer:
I think the answer is of first one.
Answer:study with a group
Explanation:Anxiety is an emotion characterized by feelings of tension, worried thoughts and physical changes like increased blood pressure. ... They may avoid certain situations out of worry. They may also have physical symptoms such as sweating, trembling, dizziness or a rapid heartbeat.
What causes anxiety are:
A big event or a buildup of smaller stressful life situations may trigger excessive anxiety — for example, a death in the family, work stress or ongoing worry about finances. Personality. People with certain personality types are more prone to anxiety disorders than others are. Other mental health disorders.
Answer:
I wouldnt say this is correct but when water is evaporating it gains water in the clouds but is loosing water on the ground therefore water could possibly be the energy
C, The turkey is considered a sacrificial bird in Mexico.
