Please answer need asap

We know more about our enviorment and how it works.  

Explanation:

because the light is a great source of energy for the plants to survive. (i hope this )

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.