Plants Cool The Planet

Question 1

Which glaciation was caused by the rise of non vascular plants

Answer 1

Ordovician glaciation

Question 2

In which geological period did trees first evolve

Answer 2

Devonian

Question 3

First evidence of land plants in fossil record

Answer 3

Fossil spores

Question 4

Plant process that led to more oxygen in atmosphere

Answer 4

Increased phosphorus weathering

Question 5

Between what percentages has oxygen been regulated since rise of plants

Answer 5

15-30% of atmosphere

Question 6

What land based mechanism counteracts increases in atmospheric CO2

Answer 6

Increased fires suppress vegetation and phosphorus weathering, causing less organic carbon to be buried

Question 7

Largest to smallest time frame names

Answer 7

Eons then eras then periods then epochs

Question 8

The first land plants were

Answer 8

Bryophytes eg Hornworts

Question 9

When were vascular plants made

Answer 9

Mid Silurian period

Question 10

Are mosses vascular or non vascular

Answer 10

Non vascular

Question 11

Which ecosystem is used as proof for plant evolution

Answer 11

The Rhynie in Aberdeenshire

Question 12

Fungal infection promotes …

Answer 12

Plant diversification