Overpopulation and Its Consequences

Overpopulation can lead to deforestation, wildlife displacement, reduced biodiversity, disrupted ecosystems and food chains, extinction of species, air pollution due to greenhouse gas emissions, contributing to global warming, water pollution, depletion of aquifers, and soil erosion.

With fewer people paying taxes, there may not be enough money to fund government services, care for the elderly, provide healthcare and education, or maintain pension systems. This could lead to a need to raise taxes or reduce the quality of services provided.

<p>The main reasons for international migration from Mexico to the USA are higher average incomes, lower unemployment rates, a growing labor force, and a higher quality of life in the USA compared to Mexico.</p> Signup and view all the answers

<p>California, Arizona, New Mexico, Texas (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Undermines employment opportunities for low-skilled US workers (A), Negative environmental effects due to increased population (B), Threatens established US cultural values (C), Increased cost to taxpayers for education and healthcare of illegal immigrants (D)</p> Signup and view all the answers

<p>The 2008 economic crisis led to increased unemployment in the USA, making it less attractive for Mexican migrants seeking employment. It also reduced the pressure on housing and employment opportunities in Mexico.</p> Signup and view all the answers

<p>Coral reefs are considered living ecosystems because they are composed of living organisms, including coral polyps, algae, and a wide variety of fish and other marine life that interact and depend on each other for survival.</p> Signup and view all the answers

<p>Plentiful supply of oxygen (A), Alkaline pH (B), Relatively calm water (C), Shallow water near the surface (D), Water free of sediment and pollution (E), Sunlight (F), Plentiful supply of algae (G), Water temperature between 18 and 27 degrees Celsius (H), Solid base and foundation (I), Salty water (J)</p> Signup and view all the answers

<p>Water filtration (A), Coastal protection from erosion and storms (B), Economic development (C), Fishing for food supply (D), Wood supplies (E), Tourism attraction (F), Carbon removal from the atmosphere (G), Medicines from plants (H)</p> Signup and view all the answers

<p>Channel flow refers to the movement of water within a river channel.</p> Signup and view all the answers

<p>Percolation is the process of water moving from the soil into the underlying rocks.</p> Signup and view all the answers

<p>Atmospheric pressure (A), Temperature (B), Precipitation (C), Sunshine and light (D), Humidity (E), Plant cover (F), Wind speed (G)</p> Signup and view all the answers

<p>Plant cover (A), Relief (B), Rock permeability (C), Rainfall (D), Slope angle (E), Soil saturation (F)</p> Signup and view all the answers

<p>Water power (A), Corrosion (B), Abrasion (C)</p> Signup and view all the answers

<p>Loss of income (A), Damage to crops (B), Loss of livestock (C), Loss of fertilizers, topsoil, and nutrients (D), Damage to roads and infrastructure (E), Flooding of farmland (F), Waterlogging of soils (G), Reduction of crop yields (H)</p> Signup and view all the answers

<p>Selective breeding of animals (A), Using fertilizers or manure (B), Terracing (C), Intercropping (D), Aquaculture (E), Pesticides (F), Glasshouses (G), Crop rotation (H), Irrigation (I), Mechanization (J), Hydroponics (K)</p> Signup and view all the answers

Deforestation, wildlife displacement, less biodiversity, disrupted ecosystems, potential extinctions, air and water pollution, soil erosion.

Insufficient funding for government services, health care, and pensions; potential tax increases.

Access to contraception, education, cultural shifts, legal abortion, women's workforce participation, improved health care, anti-natalist policies.

Migration driven by income differences, job availability, quality of life; challenges include illegal immigration and cultural impacts.

Living ecosystem with diverse species, calcium carbonate structure, colorful appearance, fragile, supporting underwater plants.

Needs sunlight, specific temperatures, shallow unpolluted water, oxygen, algae, calm waters, alkaline pH, and solid foundations.

Protect coasts from erosion, provide food and medicines, filter water, supply wood, attract tourists, aid in carbon reduction.

Movement of water in a river.

Movement of water from the soil into the rocks.

Changes due to temperature, sunlight, precipitation, types of plants, and seasonal leaf shedding.

Differences caused by plant cover, terrain relief, rainfall amounts, soil saturation, and rock permeability.

Water power removes banks, abrasion from materials, air expansion in cracks, and chemical corrosion.

Income loss, flooding, crop damage, livestock losses, and washed away nutrients.

Techniques like fertilizers, crop rotation, irrigation, mechanization, aquaculture, and vertical farming.