REVIEW 4 (Unit 9-10) - SPEAKING & READING - Tiếng Anh 11 Global Success

Homelessness is a pressing social issue ___(6)___ affects millions of people around the world. Defined as lacking a stable, safe, and adequate place to live, homelessness transcends geographical boundaries and impacts individuals and families ___(7)___ diverse backgrounds.
One of the primary causes of homelessness is the lack of affordable housing. Rising rents and property prices have ___(8)___ many individuals and families out of the housing market, forcing them to seek shelter in temporary accommodations or on the streets ___(9)___, economic hardships, job loss, and limited access to social support systems can exacerbate the issue, leaving vulnerable populations at an ___(10)___ risk of becoming homeless. A significant subset of the homeless population comprises individuals struggling ___(11)___ mental health issues. The lack of proper mental health care and support can lead to a downward spiral, leaving people without the resources to maintain stable housing or employment. Tragically, this cycle perpetuates their homelessness, making it difficult for them to reintegrate ___(12)___ society. Another vulnerable group affected by homelessness is youth. Many young people experience family breakdowns, abuse, or neglect, leaving them without a stable home environment. Without proper guidance and support, they can end up ___(13)___ on the streets, facing increased risks of exploitation, substance abuse, and involvement in criminal activities.
Homelessness not only impacts individuals’ well-being but also places a burden on society as a whole. It ___(14)___ public resources as governments try to provide emergency shelters, food, and medical care for the homeless population. Additionally, it creates challenges for local communities as the presence of homeless encampments can lead to concerns about safety and public ___(15)___.

Ecosystems are intricate and interconnected systems that encompass all living organisms and their physical environment. These diverse ecosystems, ranging from rainforests to coral reefs, play a vital role in sustaining life on Earth and providing essential services to human societies.
A key characteristic of ecosystems is their delicate balance. Each component, whether it be plants, animals, microorganisms, or abiotic factors like water and soil, interacts with others in a complex web of relationships. These interactions create a dynamic equilibrium that allows the ecosystem to thrive and maintain its functionality.
One crucial aspect of ecosystems is biodiversity. The variety of species within an ecosystem contributes to its resilience and adaptability. A diverse range of plants and animals ensures that if one species is affected by a disturbance, others can step in and fulfill similar ecological roles, preventing catastrophic collapses. Unfortunately, human activities such as deforestation, pollution, and overexploitation of resources have led to a decline in biodiversity, disrupting the balance and stability of many ecosystems.
Another fundamental concept in understanding ecosystems is the flow of energy and nutrients. Producers, such as plants and algae, convert sunlight into energy through photosynthesis. This energy is then transferred through the food chain as herbivores eat plants, and carnivores eat herbivores. Decomposers break down dead organisms, returning nutrients to the soil for the next generation of plants. This interconnected flow of energy and nutrients is vital for the functioning and sustainability of the ecosystem.