<span>Light dependent reactions require an actual source of light, and this is from the sun, for energy to carry out the first stage of photosynthesis. They need solar energy to split a water molecule in order to obtain electrons from hydrogen to be used in fueling photosynthesis. Light independent reactions do not require a light source for energy but rather they use energy that was created by the light dependent reactions to complete the process of photosynthesis in which different carbohydrates for the plant are made.</span>
A- valve replacement
b- stents
x- heart transplant
Answer:
the steps are
we need to keep tight security system in forest area
hunting of animal must be stopped
Answer:
Explanation:
Su cabeza es proporcionalmente mucho más grande.La cabeza de un recién nacido representa aproximadamente 1/4 parte de su masa corporal, mientras que la de un adulto entre 1/7 y 1/8 parte. b) La musculatura de un bebé es muchísimo más débil que la de un adulto, especialmente en la zona cervical.
Answer:
4 Fe + 3 O₂ → 2 Fe₂O₃
Explanation:
Let's start with the oxygen.
Reactants - 2
Products - 3
What number do 2 and 3 have in common? 6.
Put a 3 in the reactants and a 2 in the products to balance the oxygen.
Fe + 3 O₂ → 2 Fe₂O₃
Now let's look at the iron.
Reactants - 1
Products - 4
Put a 4 in the reactants to balance the iron.
4 Fe + 3 O₂ → 2 Fe₂O₃
The equation is balanced. Hope that helps.
