Geology

Question 0

Invertebrate

Answer 0

Has no backbone

Question 1

Paleozoic Rock

Answer 1

Contains fossils of the first plants and animals.

Question 2

Earth Age

Answer 2

4.568 billion years

Question 3

Cenozoic era

Answer 3

The age of animals

Question 4

Relative Dating

Answer 4

How old is something relative to something else

Question 5

Relative Dating fossils

Answer 5

Measured by how deeply buried they are when discovered

Question 6

Precambrian era

Answer 6

Oxygen started by photosynthesis in cells

Question 7

Geologic time

Answer 7

Based on fossil animals and plants

Question 8

Uranium half life

Answer 8

4.5 billion years

Question 9

Youngest fossils are _______ years old.

Answer 9

10,000

Question 10

Human domain

Answer 10

Eukarya

Question 11

Human kingdom

Answer 11

Animalistic

Question 12

Human phylum

Answer 12

Chordata

Question 13

Human class

Answer 13

Mamalia

Question 14

Human order

Answer 14

Primates

Question 15

Human family

Answer 15

Hominid ad

Question 16

Human genus

Answer 16

Homo

Question 17

The 3 types of radioactive particles

Answer 17

Alpha (largest)
Beta (smaller) can injure humans
Gamma (smallest) high energy can disrupt cells

Question 18

Alpha particles consist of ________

Answer 18

2 neutrons and 2 protons

Question 19

Beta particles consist of _________

Answer 19

Electrons

Question 20

Gamma rays consist of ________

Answer 20

Entirely energy

Question 21

Half-life definition

Answer 21

The time it takes for a radioactive substance ( the parent) to lose half its radioactivity (decays to the daughter material)