Investigating which question will help a student find out whether the core of Mars is similar to the core of Earth?
Is the core of Mars metallic?
O What is the rate of rotation of the core of Mars?
O Is the core of Mars thicker than other layers of Mars?
Does the core of Mars have a strong gravitational field?

the awnser is d i think

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements