Which of the following materials do plant leaves absorb? a. carbon dioxide b. oxygen c. water d. minerals

The plant leaves absorb oxygen and carbon dioxide, the water and the minerals are absorbed by the roots of the plant.

Option A & B

Explanation:

The plant absorbs carbon dioxide to facilitate photosynthesis and it absorbs oxygen for respiring. It is said that hat the plants absorb carbon dioxide during day time and oxygen during night.

At day time there is maximum sunlight which is utilized by the leaves for the process of photosynthesis. During day time the oxygen that God as a by-product of photosynthesis is utilized for respiration whereas during night in the absence of sunlight the plant requires oxygen from outside

the answer is b: 1.4 km/hr

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus