Fossils allow scientists to determine when and for how long a certain species lived.
what can scientists deduce from this discovery?
a.
earth's life has changed over time
b.
which fossils are heavier
c.
the food sources that were available
d.
explain how earth remained unchanged

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

If the new moon happens on january 15th, what shape will it be on february 6th?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?