Biology Plants & Animal Conservation part 13 (Questions) CBSE class 8 VIII | Summary and Q&A

TL;DR

Deforestation leads to loss of species, soil erosion, increased carbon dioxide concentration, reduced groundwater levels, and the deterioration of the forest ecosystem.

Key Insights

• 🥺 Deforestation leads to a loss of species, soil erosion, increased carbon dioxide concentration, and reduced groundwater levels.
• 🌲 The absence of trees impacts the entire forest ecosystem and increases the possibilities of flood and drought.
• 💁 Conserving biodiversity helps in creating a stable biological community, increasing productivity, and ensuring the sustenance of all life forms.
• ❓ Protected forests can still be unsafe for wild animals due to human interference.
• 😋 Some tribal people depend on forests for resources like wood, medicinal plants, and food.
• ❤️‍🔥 Overpopulation, human settlements, industrial activities, and forest fires are some causes of deforestation.
• 🌸 Deforestation leads to the loss of species, increased concentration of carbon dioxide, lowered groundwater levels, and reduced rainfalls due to fewer green plants.

Transcript

Read and summarize the transcript of this video on Glasp Reader (beta).

Questions & Answers

Q: What are the adverse effects of cutting down trees?

Cutting down trees leads to the loss of species, soil erosion, increased carbon dioxide concentration, reduced groundwater levels, and the deterioration of the forest ecosystem, increasing the possibilities of flood and drought.

Q: What happens when the habitat of an animal is disturbed?

When the habitat of an animal is disturbed, they become homeless and face the risk of becoming extinct. Additionally, the top layer of soil gets exposed, leading to reduced soil fertility and crop productivity.

Q: Why should we conserve biodiversity?

Conserving biodiversity is important as it provides a better environment, a stable biological community, increased productivity, and better sustenance of all life forms.

Q: Are protected forests safe for wild animals?

Protected forests may not be completely safe for wild animals as human interference, such as illegal logging, can still occur. This can make them unsafe and disrupt the habitat of wild animals.

Summary & Key Takeaways

• Cutting trees leads to the loss of species as they lose their shelter and food source, soil erosion due to lack of tree roots, increased carbon dioxide concentration, and reduced groundwater levels.

• The entire forest ecosystem gets spoiled, and the possibilities of both flood and drought increase due to reduced water holding capacity and moisture contribution by plants.

• Disturbing the habitat of animals can lead to their extinction, topsoil erosion and reduced fertility, and decreased crop productivity.