Answer:
Telescopes, spectroscopes, space probes.
Explanation:
study suggests that photosynthetic eukaryotes may have emerged around 1.9 billion years ago in freshwater habitats. Eukaryotes are thought to have evolved the capacity for photosynthesis through a process called endosymbiosis, in which a protist host encapsulated a photosynthetic cyanobacterium.
The question lacks the options. I found the answer on the internet.
Following are the instructions that the nurse should give to the patient suffering with pneumonia followed by intermittent episodes of cough and thick yellow sputum:
1. Drink a lot warm water to keep hydrated.
2. Do deep breathing exercises once in every two hours. This will increase the oxygen uptake by the lungs.
3. DO not avoid walking. Walk as much as possible for good mobility and functioning of the body.
Explanation:
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
