The Biosphere

Question 1

Biosphere is region on or close to our planet in which

Answer 1

Life can be sustained

Question 2

Each ecosystem has a set of _ that governs how it functions

Answer 2

ecological factors

Question 3

Non-living factors are called _ factors

Answer 3

Abiotic

Question 4

Abiotic factors include energy sources such as (2)

Answer 4

Light

Chemicals (oxygen, water, rock)

Question 5

3 spheres that provide abiotic factors

Answer 5

Lithosphere

Hydrosphere

Atmosphere

Question 6

Biosphere is region where other spheres combine to

Answer 6

Create conditions that are compatible with life

Question 7

Grasslands tend to form where

Answer 7

Water is scarce

Question 8

Forests and woodlands grow in

Answer 8

Wet areas

Question 9

Rüppell’s Vulture can fly as high as

Answer 9

7 miles (11km)

Question 10

Age of biosphere

Answer 10

3.5 billion years

Question 11

_ live deep below surface without sunlight or oxygen

Answer 11

Rock-eating bacteria

Question 12

Rock-eating aka

Answer 12

Lithotropic

Question 13

Rock-eating bacteria obtain energy by metabolizing _ from rocks (2)

Answer 13

Sulfur

Iron

Question 14

Limits of biosphere are determined by

Answer 14

Supply of energy and nutrients

Question 15

Above _ atmosphere too thin for most animals to breathe

Answer 15

4 miles (6 km)

Question 16

Lower limit of biosphere at 250f (120c)

Answer 16

Even extreme-loving bacteria cannot survive

Question 17

Atmospheric winds spread fungal spores, plant seeds, microorganisms, and even _ around the biosphere

Answer 17

Tiny animals

Question 18

_ from land are washed into the ocean

Answer 18

Mineral nutrients

Question 19

Below sediment (on bottom of ocean) is

Answer 19

Oceanic crust

Question 20

Below oceanic crust is

Answer 20

Upper mantle

Question 21

Bacteria in lithosphere has been found to live as deep as _ in crust below ocean floor

Answer 21

6.5 miles (10.5km)

Question 22

Most oceanic animals live within _ ft of surface

Answer 22

1,600

Question 23

Atmosphere contains oxygen and carbon dioxide and also

Answer 23

Ultimate source of nitrogen

Question 24

Nitrogen used in _ and other essential life chemicals

Answer 24

Proteins

Question 25

Hydrosphere (below atmosphere) contains

Answer 25

Water mostly as liquid

Question 26

Water in hydrosphere may (2)

Answer 26

Freeze into ice

Evaporate

Question 27

As well as filling the oceans, hydrosphere also includes

Answer 27

Large amounts of ground water in rock

Question 28

Most crowded part of biosphere is

Answer 28

Dry land

Question 29

Oceans contain about _ percent of habitat space

Answer 29

97

Question 30

Oceans only contain _ per cent of life seen on land

Answer 30

10

Question 31

Why less life in ocean

Answer 31

Lack of nutrients in large volume of water

Question 32

Why less life in ocean

Answer 32

Lack of nutrients in large volume of water