Titles

What is the text about:                              (Articles from the textbooks)

Natural hazards 

Classification of fish

Volcanoes

Ant communication 

The Colombian exchange

Bamboo solution


Ways of building in mud
Red tides worldwide 
Life beyond our solar system
National parks and sanctuaries


Types of volcanoes



Рollution


The future of transport
Fossil discovery and collection
Environmental awareness 

Vitamins and minerals

The effects of age on learning

Discovery of the Americas
Inner and outer planets


Classification of airplanes

Volcanic materials


Types of cholesterol
The sensory systems of sharksLimitations of mudAcid rain 
Impacts of pollution
Mission to MoonNative American architecture 

Last millennium

Ant defense behavior

Comet groups

Looking for life on Mars
Volcano hazards


Human nutrition


MalnutritionFamine ExobiologyTypes of ants 
Process of fossilization
African mud architecture
Volcano formation
Intriguing aspects of comets
The origins of lifeEnvironment

Where fossils form


Ice age
Impacts of comets

Solid wastes

Types of pollution

History and control of pollution

Leland

Role of ants in ecosystem

Understanding the environment

Environment-threatening factors  

Efforts to protect the environment 

Formation of acid rain

How to control acid rain  

Effects of acid rain  

Manatee die-off 

The biodiversity issue 

Prevalence of AIDS 

AIDS: Social and ethical issues 

Exploration of Mars

The atmosphere of Mars  

White and black dwarfs  

Mariner space probes

The effects school has on children

Global warming in Serbia

Vegetation in a desert

Dangers of smoking

Evolution of typing devices