Absence of chemical energy in the body, can and will eventually lead to death.
Answer:it has risen
Explanation:
It has risen due to the burning of fossil fuels which produces a lot of green house gases.and it has also risen due to deforestation,no enough plants to consume the green house gas(carbon dioxide)
Answer:
False
Explanation:
Because there is a 90% chance of contracting HIV from a blood transfusion
Stars don't have moons and planets do
Answer:

Explanation:
As we know that the speed of the rocket is v1 and v2 at the bottom and top of the window
then we will have



also we know that


now we have

also we have

now if the sill of the window is at height 8 m from the ground then we have


