Take this Quiz: GCSE Geography: Ecosystems and Food Webs | Zestly

Question 1

Which of the following best describes the role of an abiotic factor in an ecosystem?

Accepted Answer

A non-living physical or chemical component that influences the environment

Question 2

In a food web, which of the following roles are typically occupied by organisms that obtain energy by eating other organisms?

Accepted Answer

Primary consumer

Question 3

What is the primary function of decomposers within a nutrient cycle?

Accepted Answer

To break down dead organic matter and release nutrients back into the soil

Question 4

If a disease significantly reduces the population of a primary consumer in a pond ecosystem, which of the following are likely consequences?

Answer

The population of producers may increase due to reduced grazing

Answer

The population of top predators will likely increase

Answer

The population of secondary consumers may decrease due to a lack of food

Answer

The amount of sunlight reaching the pond will decrease

Question 5

Which of the following are examples of biotic components found in a UK deciduous woodland?

Answer

Soil pH

Answer

Oak trees

Answer

Earthworms

Answer

Average annual rainfall