Are spider multicellular

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

Identify the decay mode particle emitted from the th 234

Which of the following involves only abiotic factors? a. a large rock being weathered by wind and rain b. an otter using a stone to break open a sea urchin c. a spider building a web in the corner of a building d. a pine tree absorbing light from the sun