Answer;
D. redwood tree forests.
Explanations;
Gymnosperms are seed-bearing vascular plants including, conifers, cycads, ginkgo, in which the ovules or seeds are not enclosed in an ovary.
In gymnosperms the cone is the female reproductive part and the pollen is the male reproductive part.
Red wood trees are examples of gymnosperms and are important in maintaining the balance of carbon dioxide in the atmosphere like other green plants.
Answer N0 1)
Lights are left on overnight:
If lights are left on overnight, then the process of photosynthesis will also occur during the night time when the sun is not present. Hence, this method is beneficial.
Farmers can also add fertilizers to the soil:
The addition of fertilizers to the soil allows essential nutrients to be taken up by the plant which will enhance its photosynthetic activity.
Extra carbon dioxide can be pumped into the green house. This comes from the burning of fuel like paraffin which releases. Carbon dioxide as a by-product.
Plants convert carbon dioxide and water into oxygen and glucose during photosynthesis. Hence, this process can be somewhat beneficial.
Fossil fuels are burnt (expensive) to keep the green house nice and warm.
Burning of fossil fuels to keep the green house warm is not an efficient process because this will deplete the natural resources.
Answer No 2)
Plants are protected from unfavourable conditions in a green house. Conditions such as harsh temperatures or harsh wind or floods can completely destroy crop plants. Hence, plants can be grown in the green house where favorable conditions are maintained for their growth.
A systematic approach to discovery is known as the ___________
scientific method
hope this helps.
These characteristics are only present during embryonic development in some chordates. The notochord provides skeletal support, gives the phylum its name, and develops into the vertebral column in vertebrates. The dorsal hollow nerve cord develops into the central nervous system: the brain and spine.