What is the relationship between earth’s surface features and earth being called the “blue planet”? (1 point)
clouds in earth’s atmosphere can sometimes appear blue when viewed from space.
water on earth’s surface appears blue when viewed from space.
the sky is actually blue.
oxygen in earth’s atmosphere appears blue when viewed from space.

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Select three sports that require participants to be highly fit before the beginning a: snowboarding b: skydiving c: rock climbing d: bungee jumping e: free diving f: hiking

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.