What most directly causes hypertension?
lack of blood flow to the heart.
a weakening of a blood vessel wall
excessive force to blood pumping
injury to heart muscle

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Why did the federal government end its support of yucca mountain as a site for long-term storage of nuclear water