living world

Question 1

what is biotic

Answer 1

Biotic means the living environment

Question 2

what is abiotic

Answer 2

Abiotic factors are non-living.

Question 3

what are producers

Answer 3

These are plants which photosynthesise .

Question 4

what are consumers

Answer 4

organisms that obtain food by eating other organisms.

Question 5

what are decomposers

Answer 5

organism that breaks down dead organic material

Question 6

what does a food chain show

Answer 6

A food chain shows how each living thing gets food

Question 7

what are the causes of deforestation

Answer 7

logging
cattle ranching
mineral extraction
comercial farming
road building

Question 8

what is logging (causes)

Answer 8

countries cut down trees and then sell them to other countries to make furniture
3 per cent of deforestation is from logging

Question 9

what is cattle ranching (causes)

Answer 9

80 percent of deforistation comes from cattle ranching
the amazon rainforest has been cleared of large areas to make way for live stock

Question 10

what are the impacts of deforestation

Answer 10

climate change
decline of indegenous tribes
river pollution
soil erosion and fertility

Question 11

what is river pollution (impacts)

Answer 11

mercuary used to separate the gold is allowed to enter the river and poison’s the fish

Question 12

what is soil erosion and fertility (impacts)

Answer 12

as soon as any part of the forest cover is cleared the thin top soil is quickly removed by heavy rainfall there is little chance for anything to grow there again

Question 13

what are the 5 ways that are used to manage the rainforest sustainably

Answer 13

ecotourism
conservation and education
selective logging
debt reduction
international agreements

Question 14

what is selective logging (manage)

Answer 14

selective logging of mature trees ensures that the rainforest canopy is preserved

Question 15

what is eco tourism (manage)

Answer 15

this encourages sustainable tourism that creates jobs for local people whilst ensuring money is generated to conserve the rainforests

Question 16

how is the desert fox adapted to the dessert

Answer 16

heat radiating ears
pale fur to camouflage in the sand

Question 17

how is the camel adapted to the desert

Answer 17

long eyelashes to keep the sand out
the hump of the camel stores fat

Question 18

what are the causes of desertification

Answer 18

climate change- the climate will become drier and hotter
population growth- more people will need more land for farming and more trees
removal of fuel wood- removal of trees makes soil exposed
over grazing- grass is consumed quicker than it can grow so grass cover is reduced

Question 19

what are the strategies to reduce the risk of desertification

Answer 19

tree planting
water and soil management
use of appropriate technology

Question 20

what is desertification

Answer 20

the process of land turning into desert as the quality of the soil declines over time

Question 21

how does a cactus adapt to living in a hot dessert

Answer 21

Spines and thorns that reduce water loss and protect from predators.
Shallow or deep root systems that collect water from a large area or from underground.
Thick and expandable stems that store water and nutrients.

Question 22

give 3 challenges in the western dessert

Answer 22

extreme temps- death valley holds the record for the hottest temp in us history with 57 degrees this can cause death
incaccesability- population densities are low and so there is a lack of surfaced roads in much of the western dessert
water supply- rainfall is limited in desert

Question 23

summarise the landscape and charecterisitics of the western dessert

Answer 23

hot dry weather with little to no vegatation and some species of animals

Question 24

what are some opportunities in the western dessert

Answer 24

mineral extraction- the western dessert states are rich in minerals including copper uranium lead zinc and coal
energy- the strong sun in the western dessert provides a fantastic opportunity for solar pannels with 1.2 million pannels that will provide 100,000 homes