Identify the letter of the choice that best completes the statement or answers the question. When determining the number of significant digits in a measurement,

B

Explanation:

Identify the letter of the choice that best completes the statement or answers the question. When determining the number of significant digits in a measurement. When determining the number of significant digits in a measurement,

a. all zeros are significant.

b. all nonzero digits are significant.

c. all zeros between two nonzero digits are not significant.

d. all nonzero digits are not significant.

According to the rule of significant figures;

Hence, the correct option is B.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.