The third one.……...................
Answer:
An iron rod used for beating down the earthy substance in tamping for blasting.
Actually, heavier objects fall faster. The difference is infinitesimal, but there is a tiny difference because more mass causes objects to fall faster (e.g. objects fall faster on earth than on the moon). On earth, the different rate of fall between heavier and lighter objects is negligible (because objects are tiny compared to the earth's mass), so objects of different weights fall at virtually the same rate. But not at exactly the same rate. Objects of different weights must accelerate at different rates because accel.
The answer is cell. In the cell level of organization arachnoidiscus enhrenbergii and the stomach can be seen.
