2. explain how the following factors can impact the biosphere:

a. human population growth:

b. invasive species:

c. pollution:

d. overharvesting:

Question

2. explain how the following factors can impact the biosphere:

a. human population growth:

b. invasive species:

c. pollution:

d. overharvesting:

Accepted Answer

### a. Human population growth
# Brief Explanations:
As human population grows, there is increased demand for resources like food, water, and land. This leads to deforestation for agriculture/habitation, overuse of water (depleting aquifers), and more waste/pollution. Habitat loss reduces biodiversity, and resource overexploitation disrupts ecosystems.
# Answer:
Increased human population growth increases demand for resources (food, water, land), causing deforestation, habitat loss, over - extraction of resources, and more pollution, which disrupts ecosystems and reduces biodiversity in the biosphere.

### b. Invasive Species
# Brief Explanations:
Invasive species are non - native organisms that, when introduced to a new ecosystem, have no natural predators or competitors. They outcompete native species for resources (food, space, light), prey on native species, or introduce new diseases. This can lead to the decline or extinction of native species, disrupting food webs and the overall balance of the ecosystem.
# Answer:
Invasive species, lacking natural controls in new ecosystems, outcompete, prey on, or introduce diseases to native species. This disrupts food webs, reduces native biodiversity, and alters the structure and function of the biosphere's ecosystems.

### c. Pollution
# Brief Explanations:
Pollution (e.g., air, water, soil pollution) introduces harmful substances into the biosphere. Air pollution (e.g., greenhouse gases, particulate matter) can cause climate change (altering habitats, affecting species' ranges) and respiratory issues in organisms. Water pollution (chemicals, sewage, plastics) contaminates aquatic habitats, harming aquatic life (e.g., killing fish, disrupting aquatic food chains) and making water unfit for consumption. Soil pollution (heavy metals, pesticides) degrades soil quality, reducing plant growth and affecting organisms that depend on plants.
# Answer:
Pollution (air, water, soil) introduces harmful substances. Air pollution causes climate change and harms organisms' health; water pollution harms aquatic life and contaminates water sources; soil pollution degrades soil, reducing plant growth. All disrupt ecosystem balance in the biosphere.

### d. Overharvesting
# Brief Explanations:
Overharvesting is the excessive removal of organisms (e.g., overfishing, overhunting, over - collecting plants) from an ecosystem. It can lead to the depletion of species populations. For example, overfishing can collapse fish populations, disrupting marine food webs (e.g., if a keystone species is overharvested, the entire ecosystem structure can change). Overhunting can lead to the extinction of species, and over - collecting plants can reduce plant biodiversity, affecting organisms that rely on those plants for food or habitat.
# Answer:
Overharvesting (e.g., overfishing, overhunting) depletes species populations. It can collapse food webs (e.g., overfishing disrupts marine food chains), lead to species extinction, and reduce biodiversity, disrupting the biosphere's ecosystem balance.

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QUESTION IMAGE

Question

Explanation:

a. Human population growth

Answer:

b. Invasive Species