Answer:
Gravitational lensing is how we know there is dark matter
What this means is that the light is bending as the light travels from the source to the observer, and if there are any 'holes' in between the beam, that is where 'dark matter' exists
Explanation:
Answer:
Formular of kinteic energy is 0.5 × (mass x velocity)²
0.5 × 2500 kg × 35² =1,531,250 jules
Elliptical, as shown by most projections
Answer:
<h2>C</h2>
Explanation:
2.0 × 10^3 is the correct form for writing any term in scientific notation form.
Comment for understanding anything.
Answer:
over harvesting, pollution, introduction of invasive species such as new predators and food competitors
Explanation:
The main cause of mass extinction is Humans cause extinction of a species through overharvesting. The second main cause is pollution ., introduction of invasive species such as new predators and food competitors, habitat destruction, overhunting and other influences. Another very important cause of mass extinction is the unsustainable human population growth.
The five mass extinction events are
Ordovician Mass Extinction
Devonian Mass Extinction
Permian Mass Extinction
Triassic -Jurassic Mass Extinction
and Cretaceous -Tertiary (or the K-T) Mass Extinction.
