Well, half-life is the radioactivity of an identified isotope that decreases by half of the actual value.
So, your answer would be C.
Decomposers is the correct answer. ( I got your back bro)
Answer:
Hey, how you doing.
I think (warning I said think not to know!) that it is A because of the following:
Eruptions can be predicted if you have a good history of their activity. you also need to have lots of equipment constantly monitoring. Tsunamis can't really be predicted because earthquakes can't (that's why B is wrong). But however, if there is a giant asteroid impact you can predict that it will cuase i giant tsunamis.
A is the only one with 1 correct answer so I would go with it.
'N' is labelled 'runoff'. That's when the water is down. Streets are wet, worms come out of the ground, and water flows down the street to the sewer.
Answer:
See the explanation below.
Explanation:
Work in physics is defined as the product of force by the distance that the body travels in the direction of the force.
It can be represented by means of the following equation.

where:
W = work [J]
F = force [N]
d = distance [m]
In the given example the work is zero since the tree does not move, therefore the bear exerts a force on the tree. But there is no talk of movement of the tree, therefore the work is zero.