Why are no rocks found that date from the first 800 million years of Earth's
existence?
O
A. All the rocks from that time period have been destroyed by plate
movements,
O
B. They have all been buried too deeply under newer rocks.
O
c. Earth was too hot to have solid rocks at that time.
O
D. They were all destroyed by a comet impact.

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

What will happen if deforestation continue to destroy the green plant on the planet