The document discusses road signs and provides resources to help identify the meaning of different types of road signs. It lists several common road signs such as no entry signs, speed limit signs, pedestrian zones, highway signs, and highway/motorway signs and includes links to images of examples of these various signs.
The document discusses road signs and provides resources to help identify the meaning of different types of road signs. It lists several common road signs such as no entry signs, speed limit signs, pedestrian zones, highway signs, and highway/motorway signs and includes links to images of examples of these various signs.
Polar bears have evolved to rely on sea ice for hunting seals, their primary food source. However, global warming is causing Arctic sea ice to rapidly diminish, which reduces polar bears' access to food. This leads to lower body conditions, lower cub survival rates, and increased risks of drowning or cannibalism for polar bears. Because temperatures are rising, sea ice is melting further from coastlines, making it more difficult for polar bears, especially mothers with cubs, to reach their food sources and return to land. If warming continues, many polar bear populations could decline or become unsustainable.
Polar bears have evolved to rely on sea ice for hunting seals, their primary food source. However, global warming is causing Arctic sea ice to rapidly diminish, which reduces polar bears' access to food. This leads to lower body conditions, lower cub survival rates, and increased risks of drowning or cannibalism for polar bears. Because temperatures are rising, sea ice is melting further from coastlines, making it more difficult for polar bears, especially mothers with cubs, to reach their food sources and return to land. If warming continues, many polar bear populations could decline or become unsustainable.
2. Z dávné minulosti
• Na území ČR najdeme mnoho míst, která
připomínají důležité události naší historie
• Někteří z Vás jistě už navštívili horu Říp, nebo
horu Blaník
• O těchto horách nám vyprávějí staré pověsti