Match each theory of planet formation to its best description.
core accretion
theory
gas and dust sticks to
itself and collapses
gravitational
instability theory
a core of rock and ice
attracts gases

Explain how mendel kept his pea plant from self pollination

What type of tree is the tallest tree in the world?

An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25