JSS 1 Intermediate Science Flashcards: Causes, Effects and Prevention of Bush Burning

Question 1

What is bush burning?

Accepted Answer

the setting of vegetation on fire over an area of land

Question 2

A common agricultural reason for bush burning is to ____.

Accepted Answer

clear land for cultivation

Question 3

Which activity can accidentally start a bush fire: dropping a lit cigarette, mulching a farm, planting cover crops, or clearing a firebreak?

Accepted Answer

dropping a lit cigarette

Question 4

Hunters may cause bush fires when they use fire to ____.

Accepted Answer

drive animals out of hiding

Question 5

One immediate effect of bush burning on wildlife is ____.

Accepted Answer

death or loss of habitat

Question 6

Repeated bush burning reduces soil fertility by destroying ____.

Accepted Answer

humus and soil organisms

Question 7

How does bush burning leave land more vulnerable to erosion?

Accepted Answer

It removes the vegetation that protects the soil.

Question 8

Smoke from bush burning mainly causes ____ pollution.

Accepted Answer

air

Question 9

A possible economic effect of an uncontrolled bush fire is ____.

Accepted Answer

loss of crops and property

Question 10

Bush burning may contribute to climate change by releasing ____.

Accepted Answer

greenhouse gases

Question 11

What is a firebreak?

Accepted Answer

a cleared strip that slows or stops the spread of fire

Question 12

The main reason for creating a firebreak before a controlled burn is to ____.

Accepted Answer

confine the fire to the intended area

Question 13

Which practice is a safe alternative to burning crop residues: composting them, adding petrol to them, burning them in strong wind, or leaving flames unattended?

Accepted Answer

composting them

Question 14

Why should burning be avoided during dry, windy weather?

Accepted Answer

Fire can spread rapidly and become uncontrollable.

Question 15

If a small bush fire cannot be controlled safely, the correct action is to ____.

Accepted Answer

raise an alarm and contact emergency authorities

Question 16

A regulation that bans indiscriminate bush burning mainly protects ____.

Accepted Answer

people, property, farmland, and ecosystems

Question 17

Which is NOT a responsible way to prevent bush fires: educating farmers, enforcing regulations, maintaining firebreaks, or leaving cooking fires unattended?

Accepted Answer

leaving cooking fires unattended

Question 18

How does afforestation help land damaged by repeated burning?

Accepted Answer

New trees restore vegetation cover and protect the soil.

Question 19

The most suitable message for a bush-burning awareness poster is ____.

Accepted Answer

Prevent bush fires: protect lives, farms, and forests.

Question 20

All of these are effects of bush burning except improved wildlife habitat, soil degradation, air pollution, and loss of crops.

Accepted Answer

improved wildlife habitat

Strong work.

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