MY BIOLOGY LESSONS

This quiz is based on facts about pollution. Test how much you know about pollution. Who will be the first to get all fifteen questions? 1.  What causes pollution? A.  Cars B.  Animals C.  Factories D.  A and C only 2.  How many people die of air pollution around the world each year? A.  50,000 B.  1 million C.  3 million D.  500,00   3.  Which of the following pollutants can damage lungs? A.  Ozone B.  Smog C.  Carbon dioxide D.  Nitrogen   4.  Which of the following gases does an automobile produce? A.  Carbon dioxide B.  Nitrogen C.  Helium D.  Carbon monoxide   5.  This type of pollutant causes acidification of rivers, lakes and also damages tree foliage and degrades soil quality. A.  Ozone Layer B.  Acid rain C.  Oil D.  None of the above   6.  When burning fuel for energy, small particles are

WHAT IS POLLUTION? —   Pollution can be defined as the release of toxic substances into the environment either naturally or by man’s activities to the extent that it causes biological damage to man and his resources. The harmful substances that causes pollution are called ; THE POLLUTANTS. TYPES OF POLLUTION. —   1. Air pollution. —   2. Water pollution. —   3. Land or soil pollution. —   4. Noise or sound pollution. —   5. Radioactive pollution. —   6. Thermal or heat pollution. AIR POLLUTION: This is the release of toxic substances such as smoke, fossil substances etc into the atmosphere that can cause harm to man.   Air pollutants. Carbon monoxide. Sources: exhaust pipes from cars, generator ‘s exhaust. Effects: death, suffocation. Dust . Sources : Mining industries. Effects : coughing, asthma. Sulphur dioxide Sources : car exhaust, fossil fuels, mining centers.   Effects : Acid rain, cough.                                   CONTROL

Meaning of adaptation: Adaptation can be defined as the ability for organisms to live successfully in their environment as a result of structure, appearance and behavior of organisms.it can also be defined simply as the ability for organisms to get used to their environment. Plants and animals possess different features that help them to adapt to either aquatic or terrestrial habitat. There are two most contrasting environments plants and animals adapt to which are; Aquatic environment and Terrestrial environment. Animal adaptation to the aquatic environment ·          Presence of gills for breathing in fishes. ·          Presence of fins and tails for swimming. ·          They possess lateral lining which helps them to detect movement in water. ·          They possess streamline bodies for easy movement. ·          They possess osmoregulatory structures that get rid of excess water that enters the body cells. e.g. Fresh water fishes. ·          Aquatic animals