Answer:
b
Explanation:
carbon, hydrogen and oxygen
Answer:
a
Explanation:
the water erosion breaks down the rocks
Frogs are amphibians, which means they need to live in both water and land.
They are adapted to hop on land with their feet, and their tongue to eat.
The reason frogs have lungs and also breathe through skin is so they can breathe in both of their habitats
a graphite neutron moderator
One constant kept in this experiment is the amount of food available to the larvae.
