2 IC
=
11
1
11
-
-
11
2
.
3
4
5
6
+7
Oak tree leaves (producer)
25,500 kcal
Sunlight hitting Earth's surface - 3.190,000 kcal
1. What unit is being used to measure energy?
a. What is the source of all energy in the pyramid in Model 1?
The source of energy being used is kinetic energy
b. How much energy does this source provide to a square meter of the Earth per year? (Be sure
your answer includes units.)
ansumers

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.