Why do tornadoes happen more frequently in the summer?
a. they form over large warm bodies of water
b. they require dust which is present in the summer
c. they require dry air
d. they require warm air

What in scientific term why the salty popcorn causes this thirst

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.

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome