If the color of leaves on oak trees usually changes in the autumn season, then which tree's leaves change color in autumn? Answer choices: - Fir - wind - Palm - blue - elms - Oak - Ficus - Aves
Oak

If pollution is usually harmful to population size of a species, then what is usually harmful to the population size of a species? Answer choices: - Pollution - reproduction - viruses - disease - habitat - ecosystems - influenza - deforestation
Pollution

Q: If temperature changing can cause water to change to ice, then temperature changing can cause what to change to ice? Answer choices: - glass - basalt - skin - heat - diamond - water - Joules - sweat
A: water

Question: If earth's tilt on it's rotating axis causes rapid weather changes, then earth's tilt on it's rotating axis causes rapid what? Answer choices: - temperature - root growth - population movement - rainfall - cloud density - weather changes - moon phases - crust pressure
Answer: weather changes

*Question*
If fossils are formed when layers of something streams carry cover the remains of organisms over time, then what carries something that covers organisms to make fossils? Answer choices: - squids - Streams - streams. - coral reef - coral - amoebae - bamboo - Nematoda
**Answer**
Streams

*Question*
If azygote is formed by an ovum, then what forms a zygote? Answer choices: - amoeba - ovum - Fe - seeds - fungi - wheat - nektar - pollen
**Answer**
ovum