Answer:
An acid increases the hydrogen ion concentration in a solution, while a base decreases the hydrogen ion concentration. pH is used to measure the concentration of H+ ions ([H+]) and therefore, whether a substance is acidic or basic (alkaline).
Explanation:
Please make mine the brainliest
Answer:
Scientific models are used to explain and predict the behaviour of real objects or systems and are used in a variety of scientific disciplines, ranging from physics and chemistry to ecology and the Earth sciences.
Explanation:
hope this helps!! vote me brailyest plzzz and have a great day!! :D
Most reasonable answer is the swallowable camera one. mris and cat scans were invented in the 70s and the rest of the answers are around the 1800s or before.
Low blood pressure on the other hand can be to do with:
Exercise and how much you do of it because regular exercise keeps blood pressure low.
Eating as after you eat, blood pressure falls.<span><span>
Stress causes blood pressure to rise.
Body temperature and how high it is affects BP because if you're body temperature is high, your BP is usually low.
Hope that helps.
</span></span>
