rainforest
Rainforest is a dense forest that receives a large amount of rainfall. It has thick vegetation with tall trees, plants, and vines. Rainforests are known for their rich variety of plant and animal life. The environment is often warm and humid. Rainforests are found near the equator in regions such as South America, Africa, and […]
tundra
Tundra is a cold, treeless biome with frozen ground called permafrost. The land is often covered with low plants such as mosses and grasses. Trees do not grow easily in these conditions. The climate is cold for most of the year. Tundra regions are found in Arctic areas and high mountain regions around the world. […]
savanna
Savanna is a grassland biome with scattered trees and seasonal rainfall. It has open spaces with grasses and small groups of trees. The climate is usually warm, with wet and dry seasons. The land can change between green and dry depending on rainfall. Savannas are found in regions such as Africa, South America, and Australia. […]
grassland
Grassland is a biome mainly covered with grasses and very few trees. The land is often open and flat or gently rolling. Grasslands receive moderate rainfall, which supports plant growth. Trees are limited because of climate and soil conditions. Grasslands are found on continents such as North America, South America, Europe, and Asia. They exist […]
steppe
Steppe is a dry grassland with low rainfall and few trees. It is covered mostly with grasses and small shrubs. The land is often flat and stretches over large areas. The climate can include hot summers and cold winters. Steppes are found in regions such as Central Asia and Eastern Europe. They exist in semi-arid […]
fossil
Fossil is the preserved remains or traces of a plant or animal from the past. Fossils can include bones, shells, footprints, or imprints left in rock. They form when organisms are buried and preserved over long periods. Some fossils show the shape of entire organisms. Fossils are found in rocks and sediment layers on land […]
environmental change over time
Environmental change over time refers to changes in Earth’s natural systems and environments. These changes can affect land, water, air, plants, and animals. They include shifts in climate, landscapes, and ecosystems. Changes may happen slowly or more quickly in different regions. Environmental change occurs across land, oceans, and the atmosphere worldwide. It affects ecosystems and […]
trade winds
Trade winds are steady winds that blow in regular patterns across tropical regions of Earth. These winds move across oceans and follow predictable directions. In the Northern Hemisphere, they usually blow from the northeast, and in the Southern Hemisphere from the southeast. They are part of Earth’s global wind system. Trade winds are found mainly […]
monsoon routes
Monsoon routes are travel and trade paths shaped by seasonal winds called monsoons. These winds change direction at different times of the year. Sailors used this pattern to plan journeys across the sea. Ships traveled in one direction during one season and returned when the winds changed. Monsoon routes were most closely connected with the […]
microplastics
Microplastics are very small pieces of plastic, often too tiny to see easily. They are found in water, soil, and air. These particles come from the breakdown of larger plastic items. Microplastics have been found in oceans, rivers, and even polar ice. They can come from products like synthetic clothing or worn-down plastic materials. Scientists […]
