story of earth pt 1
where did the first life begin
under water
what were the first land plants
The first land plants were mosses and liverworts.
what was formed during the last ice age when the Laurentide Ice sheet retreated about 14,000 years ago during the Wisconsin Glaciation.
the great lakes
what is the atmosphere
This refers to the layer of gases that surrounds the Earth. It is composed primarily of nitrogen, oxygen, carbon dioxide, and other gases. The atmosphere is vital for weather and climate regulation, as well as for life, providing the oxygen we breathe and protecting living organisms from ultraviolet radiation.
how did the earth acquire all of its water
from icy comets and asteroids that collided with the planet in its early history.
what did these land plants do
they started to colonize the land and help stabilize the soil, as well as contribute to the development of ecosystems
what is the biosphere
This term refers to all living organisms on Earth and the ecosystems they inhabit. The biosphere encompasses every part of the Earth where life exists, including land, water, and the atmosphere, and represents the interplay of biological, physical, and chemical processes
what is the gaia hypothesis
It combines elements of biology, ecology, geology, and climate science, suggesting a level of interconnectedness that challenges traditional views of life and the environment.
What was the very important role of stromatolites to conditions on our planet?
these were the first life forms to ever touch the planet being a bacteria
Why is the egg an important evolutionary breakthrough?
The egg is an important evolutionary breakthrough because it allowed for the reproduction and protection of embryos in a controlled environment, facilitating the transition from aquatic to terrestrial life.
what is the hydrosphere
This includes all the water on Earth, encompassing oceans, rivers, lakes, groundwater, and even the water vapor in the atmosphere. The hydrosphere plays a critical role in regulating climate and supporting life
is it truly a scientific method
the answer to this is still argued Apon to this day but scientist do use this method, so I do believe it is a scientific method
during snowball earth why did the suns ray not melt the ice
there was no ozone layer to hold the heat due to lack of c02
what time period does the coal and fossil fuels we use today from, describe the process
The coal and fossil fuels that we burn today come from the Carboniferous Period, during which plant material accumulated in swampy environments, underwent heat and pressure over millions of years, and transformed into coal and hydrocarbons through a process called coalification
what is the cyrosphere
This is the portion of the Earth's surface that is covered by ice and snow. It includes glaciers, ice caps, sea ice, and permafrost. The cryosphere influences global sea levels and climate patterns, and it acts as a critical component of Earth’s climate system.
Before the Devonian Period, why was there no life on land?
this is because the land was uninhabitable to any organism because of the heat and lack of oxygen
why did humans start to walk on two legs
the start of walking on two legs started under the water as well with a fish that can not only survive above the water but also walk with its fins and hold its neck up
what is the geosphere
This includes the solid parts of the Earth, such as rocks, minerals, and landforms, extending from the surface down to the core. The geosphere influences geological processes like volcanic eruptions, earthquakes, and erosion, and plays a role in the cycling of nutrients necessary for life.