Which of the following geological time periods is missing from the grand canyon ?

a. silurian
b. permian
c. devonian
d. cambrian

give explanation too the correct answer

How many cells are our body made of ? ♡

Which star has the highest apparent magnitude?

What would happen if a plant could carry out photosynthesis, but not respiration? question 1 options: it would have no food. it would have too much water. it would be unable to capture the energy in sunlight. it could make food but not break it down for energy.