Answer:
The presence in or introduction into the environment of a substance which has harmful or poisonous effects is called pollution.
Answer:
divergent
Explanation:
Plates move apart at a divergent boundary
Answer:
Photosynthesis is endothermic while respiration is exothermic reaction.
Explanation:
Photosynthesis:
It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.
Carbon dioxide + water + energy → glucose + oxygen
water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture by chloroplast.
Chemical equation:
6H₂O + 6CO₂ + energy → C₆H₁₂O₆ + 6O₂
Aerobic respiration
It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.
Glucose + oxygen → carbon dioxide + water + 38ATP
Anaerobic Respiration
It is the breakdown of glucose molecule in the absence of oxygen and produce small amount of energy. Alcohol or lactic acid and carbon dioxide are also produced as byproducts.
Glucose→ lactic acid/alcohol + 2ATP + carbon dioxide
Answer:
Option B
Explanation:
Given elements are F, S, Ca, K
Assuming that the order of ionization energies is asked for first ionization energy
Ionization energy is defined as the minimum energy required to remove an electron from its valence shell
Among these elements K will have least ionization energy because it requires minimum energy to remove an electron form its outer most shell as after removing the valence electron it will gain octet configuration, therefore it wants to loose that valence electron
Among the given elements F has maximum ionization energy because of its small size and high nuclear charge and due to this maximum amount of energy is required to remove the valence electron
While comparing between Ca and S, S has maximum ionization energy because of its small size and high nuclear charge
∴ Order is K < Ca < S < F