declare (strict_types=1); namespace ElementorProDeps\DI; use ElementorProDeps\DI\Definition\ArrayDefinitionExtension; use ElementorProDeps\DI\Definition\EnvironmentVariableDefinition; use ElementorProDeps\DI\Definition\Helper\AutowireDefinitionHelper; use ElementorProDeps\DI\Definition\Helper\CreateDefinitionHelper; use ElementorProDeps\DI\Definition\Helper\FactoryDefinitionHelper; use ElementorProDeps\DI\Definition\Reference; use ElementorProDeps\DI\Definition\StringDefinition; use ElementorProDeps\DI\Definition\ValueDefinition; if (!\function_exists('ElementorProDeps\\DI\\value')) { /** * Helper for defining a value. * * @param mixed $value */ function value($value) : ValueDefinition { return new ValueDefinition($value); } } if (!\function_exists('ElementorProDeps\\DI\\create')) { /** * Helper for defining an object. * * @param string|null $className Class name of the object. * If null, the name of the entry (in the container) will be used as class name. */ function create(string $className = null) : CreateDefinitionHelper { return new CreateDefinitionHelper($className); } } if (!\function_exists('ElementorProDeps\\DI\\autowire')) { /** * Helper for autowiring an object. * * @param string|null $className Class name of the object. * If null, the name of the entry (in the container) will be used as class name. */ function autowire(string $className = null) : AutowireDefinitionHelper { return new AutowireDefinitionHelper($className); } } if (!\function_exists('ElementorProDeps\\DI\\factory')) { /** * Helper for defining a container entry using a factory function/callable. * * @param callable $factory The factory is a callable that takes the container as parameter * and returns the value to register in the container. */ function factory($factory) : FactoryDefinitionHelper { return new FactoryDefinitionHelper($factory); } } if (!\function_exists('ElementorProDeps\\DI\\decorate')) { /** * Decorate the previous definition using a callable. * * Example: * * 'foo' => decorate(function ($foo, $container) { * return new CachedFoo($foo, $container->get('cache')); * }) * * @param callable $callable The callable takes the decorated object as first parameter and * the container as second. */ function decorate($callable) : FactoryDefinitionHelper { return new FactoryDefinitionHelper($callable, \true); } } if (!\function_exists('ElementorProDeps\\DI\\get')) { /** * Helper for referencing another container entry in an object definition. */ function get(string $entryName) : Reference { return new Reference($entryName); } } if (!\function_exists('ElementorProDeps\\DI\\env')) { /** * Helper for referencing environment variables. * * @param string $variableName The name of the environment variable. * @param mixed $defaultValue The default value to be used if the environment variable is not defined. */ function env(string $variableName, $defaultValue = null) : EnvironmentVariableDefinition { // Only mark as optional if the default value was *explicitly* provided. $isOptional = 2 === \func_num_args(); return new EnvironmentVariableDefinition($variableName, $isOptional, $defaultValue); } } if (!\function_exists('ElementorProDeps\\DI\\add')) { /** * Helper for extending another definition. * * Example: * * 'log.backends' => DI\add(DI\get('My\Custom\LogBackend')) * * or: * * 'log.backends' => DI\add([ * DI\get('My\Custom\LogBackend') * ]) * * @param mixed|array $values A value or an array of values to add to the array. * * @since 5.0 */ function add($values) : ArrayDefinitionExtension { if (!\is_array($values)) { $values = [$values]; } return new ArrayDefinitionExtension($values); } } if (!\function_exists('ElementorProDeps\\DI\\string')) { /** * Helper for concatenating strings. * * Example: * * 'log.filename' => DI\string('{app.path}/app.log') * * @param string $expression A string expression. Use the `{}` placeholders to reference other container entries. * * @since 5.0 */ function string(string $expression) : StringDefinition { return new StringDefinition($expression); } } Environmental Problems in the Modern World - کلبه پزشک
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Environmental Problems in the Modern World

Environmental issues have become one of the most discussed global challenges of the 21st century. Human activities have significantly changed natural landscapes, climate systems, and the balance of ecosystems. These disruptions threaten not only wildlife but also human health, food security, and the stability of economies worldwide. Understanding the causes and consequences of ecological problems is the first step toward finding effective solutions.

Causes of Environmental Degradation

Environmental problems are often the result of rapid industrialization, technological development, and unsustainable consumption. The main factors include:

These human activities disrupt ecosystems and reduce biodiversity, pushing many species toward extinction.

Climate Change and Global Warming

One of the most serious environmental issues is climate change. The burning of fossil fuels increases the amount of carbon dioxide in the atmosphere, trapping heat and raising global temperatures. As a result:

Climate change affects crop yields, water supply, and human health, making it a global issue requiring immediate attention.

Pollution of Air, Water, and Soil

Pollution is another major problem influenced by industrial waste, vehicle emissions, agricultural chemicals, and household trash.

Air Pollution

Air pollution contributes to respiratory diseases, heart problems, and premature deaths. Cities with heavy traffic and industrial zones are especially affected.

Water Pollution

Chemicals and plastic waste contaminate rivers, lakes, and oceans. Marine animals often swallow plastic particles, mistaking them for food.

Soil Pollution

The use of pesticides and industrial dumping reduces soil fertility, making it harder to grow healthy crops.

Loss of Biodiversity

Many animals and plants are disappearing due to habitat destruction, climate change, and illegal hunting. Biodiversity is vital because ecosystems rely on the balance of all species. Losing even one can disrupt the entire chain of life.

Solutions to Environmental Problems

Although the situation is serious, there are many possible solutions:

Governments, businesses, and individuals must work together to make meaningful progress.

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