A. 1257 miles per hour
B. 755 miles per hour
C. 330 miles per hour
D. None of these
A. 1450 m/s
B.1474 m/s
C. 1498 m/s
D. 1500+ m/s
A. Plasmolysis
B. Imbibition
C. Osmosis
D. Diffusion
Wooden door and wooden frame expand during rainy season. On expansion, the door and its frame get misaligned. Hence, doors made of wood are difficult to open or close during the rainy season.
Imbibition is a special type of diffusion that takes place when water is absorbed by solids-colloids causing an increase in volume. Examples include the absorption of water by seeds and dry wood. If it were not for the pressure due to imbibition, seedlings would not be able to emerge from soil.
A. Pellagra
B. Hair Loss
C. Muscle weakness
D. Xerophthalmia
A. N, P, K
B. N, C, P
C. N, K,
D. N, S, P
NPK stands for “nitrogen, phosphorus, and potassium,”
What causes the Moon’s phases?
A. The Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon.
B. The Sun lights up only one half of the Moon and as the Sun orbits the Earth we can sometimes see the unlit side of the Moon.
C. The Earth’s shadow falls on the Moon, blocking the sunlight.
D. The Moon’s shadow falls on the Earth, blocking the sunlight.
A. 25 units
B. 2.25 units
C. 2.5 units
D. 0.25 units