Level 4

Question 1

How are energy lost

Answer 1

heat movement indigestible parts waste

Question 2

What does a food chain start with

Answer 2

Producer

Question 3

What process do they use to make their food

Answer 3

Photosynthesis

Question 4

What percent is energy lost at

Answer 4

90%

Question 5

How do animals and plants depend on eachother

Answer 5

Food,shelter and pollination

Question 6

Name a animal adaptation

Answer 6

Eagles have good eyesight to hunt prey

Question 7

Reasons why populations stop growing Is

Answer 7

Predation, shortage of food , disease,lack of water, lack of space and waste

Question 8

3 natural hazards

Answer 8

Floods,earthquakes and volcanies

Question 9

Hazards effect on biodiversity

Answer 9

Habitats destroyed plants lose shelter food

Question 10

WOT does the development of a new plant from the embryo plant need

Answer 10

Water , oxygen and warmth

Question 11

Ñame 4 methods of asexual reproduction

Answer 11

Bulbs, tubers runners and leaf buds

Question 12

Reason for polytunnels

Answer 12

Increase temp and creates suitable temperature

Question 13

3 reasons why humans use plants

Answer 13

Raw materials, food and medicine and alcohol

Question 14

How can food production be increased

Answer 14

Use of fertilisers in area of poor soil quality

Question 15

How are nitrogen be found

Answer 15

Protein

Question 16

Where can nitrogen be found

Answer 16

In soil in from of nitrates and fertilisers

Question 17

What is the NPK meaning

Answer 17

Nitrogen phosphorus and potassium

Question 18

What can nitrates cause

Answer 18

Algae

Question 19

What does nitrogen mean

Answer 19

Leaf growth

Question 20

What does phosphorus do

Answer 20

For root growth

Question 21

What does potassium do

Answer 21

Fruit and flowers growth