The food chain ?
Sun
Primary producers
Primary consumers
Secondary consumers
Tertiary consumers
Answer:
they us concentrated scopes that go directly out of the atmosphere without any interruption
• ignitability
• corrosivity
• reactivity
• toxicity
sorry if i’m wrong
Era is used to mark the boundaries of geological time scale by using radio carbon dating technique.
Explanation:
Geological time starts with Precambrian time.
Geologically, time is divided between the Precambrian era and present time into era.
The three eras are Paleozoic era, Triassic period and Cenozoic era.
Era is further divided into periods.
Scientists use radio carbon dating to study fossils and rock formation. With this study they were able to divide them in exact geological scale.
Geologic scale is the record of events in earth's history and evolution.
