Separation and collision of continental plates

Separation of continental plates

None of the above

Phenomenom in which species have too many offspring

Phenomenom in which species cannot produce offspring

None of the above

Species never change their number of individuals

Species are being formed all the time but also dissapearing

None of the above

The natural extinction rate of all species per year

The natural extinction rate of mammals per year

The natural birth rate of all species per year

Evolve to a new species or become extinct

Become extinct or remain the same species

Evolve to a previous species or become extinct

 $\frac{1\ species\ extinct}{10^6\ species\ \cdot\ year}$  

 $\frac{10\ species\ extinct}{10^6\ species\ \cdot\ year}$  

 $\frac{100\ species\ extinct}{10^6\ species\ \cdot\ year}$  

Any event in which 75% off all species on Earth dissapear

Any event in which 15% off all species on Earth dissapear

Any event in which 5% off all species on Earth dissapear

5th mass extinction

2nd mass extinction

6th mass extinction

 $1,8\cdot10^6\$  described species

 $1,8\cdot10^3\$  describes species

None of the above

Natural events that cause loss of biodiversity

Human actions that cause loss of biodiversity

Country actions that cause loss of biodiversity

Natural events that cause loss of biodiversity

Human actions that cause loss of biodiversity

Country actions that cause loss of biodiversity

Natural events that cause loss of biodiversity

Human actions that cause loss of biodiversity

Country actions that cause loss of biodiversity

True

False

covers only 5,9% of earth's surface and contains 50% of all species

covers only 50% of earth's surface and contains 5,9% of all species

none of the above

Siberia, Australia, New Zealand

South America, Africa, Southeast Asia

North America, Central Europe, Middle East

nutrient-rich soils

nutrient-poor soils

none of the above