#767 When did Britain become an island?
When did Britain become an island? It was connected to continental Europe by a land bridge that was destroyed 450,000 years ago. Some of the land bridge returned and that…
When did Britain become an island? It was connected to continental Europe by a land bridge that was destroyed 450,000 years ago. Some of the land bridge returned and that…
How thick is the atmosphere? The atmosphere is generally considered to be 10,000 km thick. Our atmosphere is made up of gas. It is 78% nitrogen, 21% oxygen, and one…
Why does it rain in a rainforest? Tropical rainforests cause rain when water is released by the trees, but temperate rainforests form where there is a lot of natural rain.…
How have sea levels changed over time? Over the last 542 million years they have varied from 130 m lower than their level today to a theoretical 300 m higher…
Do other planets have tectonic plates? In our Solar System, Earth is the only planet with tectonic plates, but in other solar systems there will probably be planets the same…
What is a jungle? It is generally an area of dense forest in a tropical climate. Many people think a rainforest is a jungle but they are different because a…
What causes a heat wave? It is caused when high-pressure air traps a layer of heat near the surface of the Earth and raises the temperature. A heat wave is…
Why are some beaches rocky and some sandy? It is because of the energy of the sea, the source of the particles, the shape of the shoreline, local weather, and…
Why is sea level where it is? Because the volume of water in the oceans fills all of the valleys that make up the oceans to a certain depth, and…
Watch this on YouTube Is Earth an open or closed system? It is both. For some things it is open and for others, it is closed. Earth is an open…