State whether the following statements are True or False:
1. With increase in human population, the demand for natural resources has decreased
tremendously.
2. Biodiversity includes all forms of life – plants, animals and microorganisms.
3. Biodiversity helps to preserve fertile soil.
4. Global warming is a consequence of afforestation.
5. Planting of new trees where forests have been destroyed is called afforestation.
6. The bird Dodo became extinct due to excessive hunting by humans.
Answers
Answer:
1. False
2. True
3. True
4. False
5. True
6. True
Explanation:
1.) With the increase in population the burden on natural resources increase. Natural resources are limited in quantity and take a very long time in their formation. Thus increasing population increases the demand for natural resources.
Hence the given statement is false.
2.) Biodiversity includes alll forms of lives whether it be plant, animal or microorganisms. Hence the given statement is true.
3.) Biodiversity helps to preserve soil. This is because in a biodiversity lives plants, animals and microorganisms. If a plant or a animal dies, microorganisms decompose it and bury it in the soil. This acts as natural manure. And hence increases the fertility of soil. Thus the given statement is true.
4.) Global warming is the phenomena of world-wide increase in temperature. Due to afforestation,more number of trees increase which absorb greenhouse gases like CO2, etc. which reduces global warming . Also more number of trees cause rain which helps to reduce the heating effect and increasing temperature of earth.
The reduction in trees called as deforestation will cause global warming. Hence the given statement is false.
5.) Planting of new trees where forest have been cut down is called as afforestation. This is because cutting of forest is called as deforestation. Hence its opposite is known as afforestation. Thus the given statement is true.
6.) Due to excessive hunting and poaching by humans of Dodo , this bird has become extinct. Because it is not present where it is supposed to be found. Thus the given statement is true.
Answer:
global warming is useful for plants and animals