Embibe Experts Solutions for Chapter: Conservation of Plants and Animals, Exercise 1: Exercise

It takes a tree many years to mature. Paper is made from wood pulp. Paper is an organic material that is primarily made from the cellulose fibres of wood. As more people are using recycled paper, fewer trees will be cut down. Which of these graphs depicts the outcome that this act of conservation would produce after a few years?

The conservation of tigers is not just about increasing their numbers as more tigers require more habitat, which is becoming less and less available each day. It is important that tiger populations stop dwindling, and habitat stops being lost. It is often said that by protecting the tiger, we actually protect all other forms of flora and fauna. Is that true? Explain.

Some locals were dissatisfied with the way their goat herds were decreasing day by day. One day, a farmer claimed, he had seen a tiger close to their village. In order to hunt and kill as many tigers as they could, the villagers set out. The locals discovered that the number of goats was still declining despite killing numerous tigers for almost a year. Additionally, the number of monkeys that visited their village suddenly increased. The villagers had killed the wrong animal.  Which of the following best illustrates how the villagers' actions were felt?

(i) The population of the unknown predator increased.
(ii) The tiger population went down and became endangered.
(iii) The monkey population increased to unmanageable levels.

New species can either become modified through a gradual change in an entire lineage in response to a changing environment or can emerge through diversification into two or more species through formation of internal and external isolating mechanisms. The positive impacts of this new species include increased food production, economic impacts, and species habitat. Do you think introducing a new species could also have some negative impact on an ecosystem?

Tribals depend on forests for food and livelihood. Is it fair to prevent them from entering the forests? How can their symbiotic relationship be maintained?

The term "endangered species" refers to any species that is in danger of going extinct as a result of a sharp decline in population or the loss of vital habitat. Red Data Book contains a record of endangered species. Species become endangered for two main reasons: loss of habitat and loss of genetic variation. Why frog is the most endangered species of animal whereas human population is rising rapidly?

Forests are a critical cog in the global water cycle. Trees pull water from the ground and release it into the atmosphere as vapour through pores in their leaves in a process called transpiration, which can drive temperatures and rainfall across the globe. This implies that in a forest, trees will reduce groundwater by losing it in transpiration. Do you agree? Give reasons.

Tiger is one of the many species which are slowly disappearing from our forests.Project Tiger was launched by the government to protect the tigers in the country. The objective of this project was to ensure the survival and maintenance of the tiger population in the country. Suppose the project of protecting the tiger went off so well that the population of tigers increased tremendously. Would that be desirable? Why?