BECE The Environment and Sustainability 3

Question 1

What is the main environmental concern associated with plastic waste in oceans?

Accepted Answer

It harms marine life through ingestion and entanglement

Answer

Marine animals often ingest or become entangled in plastic debris, leading to injury, illness, and death.

Question 2

Which layer of the atmosphere protects Earth from harmful ultraviolet radiation?

Accepted Answer

Stratosphere ozone layer

Answer

The ozone layer in the stratosphere absorbs most of the sun's harmful UV-B and UV-C radiation before it reaches Earth's surface.

Question 3

What does 'biodiversity' refer to?

Accepted Answer

The variety of life forms in a given area or on Earth as a whole

Answer

Biodiversity encompasses the variety of species, ecosystems, and genetic diversity found in a particular region or on the entire planet.

Question 4

Which of the following activities contributes most to water pollution?

Accepted Answer

Releasing untreated industrial and sewage waste into rivers

Answer

Discharging untreated sewage and industrial effluents into water bodies introduces toxic chemicals and pathogens that severely pollute water.

Question 5

What is the 'three Rs' approach to waste management?

Accepted Answer

Reduce, Reuse, Recycle

Answer

The three Rs—Reduce, Reuse, Recycle—form a hierarchy of waste management strategies aimed at minimizing environmental impact.

(BECE) Basic Education Certificate Examination Practice Test