<span>The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the lithosphere. </span>
<span>In the phylum anthophyta, seeds develop within the ovary, which matures and ripens into a fruit.
Anthophyta are flowering plants, resembling flowers, and as you already know, regular flowers have ovaries used for seeds, and when a plant grows, it can bear a fruit.
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Answer:
Oxygen is being released through the Stomata
Option (A)
Answer:
0, 2, 4
Explanation:
The process of cellular respiration takes place in for phases which oxidizes the glucose molecule to the provide energy molecule called ATP.
Along with ATP, the process releases the metabolic water and carbon dioxide gas. In the oxidation of one glucose molecules, about 6 molecules of CO₂ are released. These CO₂ molecules are produced in the following manner:
1. Glycolysis: CO₂ gas is not produced during this reaction but only ATP and NADH are produced.
2. Pyruvate decarboxylation: the process converts the pyruvate produced by glycolysis to Acetyl-CoA. Formation of 1 Acetyl-CoA produces 1 CO₂ and since 2 Acetyl-CoA is produced therefore produces 2 CO₂ molecules.
3. Citric acid cycle: The cycle converts 2 Acetyl-CoA and produces 4 CO₂ in two cycles converting each Acetyl-CoA.
Thus, 0, 2, 4 is correct.
Answer: All the given precaution are important to take care when working with heat and fire.
Explanation:
Double check on these precaution should kept be while working or experimenting with fire and heat:
- Hair should be tied back : bun or pony will be fine. if hair are untied then chances of catching fire by hair will be high.
- Do not touch hot equipment ,if required use gloves or tongs. Touching hot equipment with bare hands may lead to burns or minor (or major) accident
- Keep your face and eyes away from the flame while experimenting.Cover your face with mask and goggles.
- Do not mix chemical until or unless told to do so. This is because some times mixing of chemicals leads to evolution of large amount of heat which can difficult to handle.
- Be careful regarding cloths while working with heat and fire.
- Flammables must be kept away and should be used with caution. Safer distance must be maintained
