PLEASE ANSWER ASAP !Materials Needed: 2 pieces of rocks or 2 pieces of chalk

Hammer

A piece of cloth

Vinegar

What to Do:

1. For set up A, get a piece of rock and wrap it in a piece of cloth. Pound it using a hammer.

Be careful in using a hammer.

2. For Setup B, get another piece of rock and pour vinegar on it. Observe what will happen.

3. Compare the changes that happen to the pieces of chalk or rocks.

4. Answer the questions below.

a. What kind of change or transformation happened to the first piece of chalk or rock?

b. Based on the activity, how will you compare the two types of weathering?

answer: pee on jews

explanation:

ans.

in united states (us), the first leading cause of death for both women and men is heart diseases that leads to more than half of the deaths. heart diseases develop due to narrow arteries, buildup of plaque in blood capillaries that arises difficulties in blood flow.

the second leading cause of deaths in us is cancer that affects individuals of all ages. it develops due to uncontrolled growth and spread of tumor cells, which results in death if the not controlled or treated.

the third leading cause of deaths in us is copd or chronic obstructive pulmonary disease. it includes difficulty in breathing, chest infections, and persistent cough. smocking is a leading cause of copd and around 80% of copd deaths occur due to smoking.

thus, the correct answer is 'option). cancer, copd, and heart disease.'