The number of rings in a tree trunk can be used to estimate the age of the tree, and tree age, scion, nutrition and other factors that affect the overall health of the tree could affect rootstock resistance or susceptibility to Phytophthora. Given these facts, what can be checked along with nutrition and scion that can help determine health of a tree. among the following options: - the number of rings - Temperature - Exfoliation - it needs them - organic molecules - aerobic capacity - biodiversity - looseness of dirt or compost
the number of rings

(Question)
Water causes refraction of light, and water is a compound of hydrogen and oxygen. Given these facts, what causes a refraction of light among the following options: - compound of hydrogen oxygen - focusing a lens - that material's properties - photosynthetic pigments? - oxidation reaction - a hemisphere is tilted away from the sun - sunlight beams - solid, liquid, gas
(Answer)
compound of hydrogen oxygen

Ques: Ablack hole is formed by a high-mass star collapses, and essentially, a black hole is a gravity drain. Given these facts, what is formed by a high-mass star collapses among the following options: - grave error - an object - a gravity drain - mass grave - deoxyribonucleic acid - Physical weathering - gravity depletion - hydrogen and oxygen
Ans: a gravity drain

(Q).
Smoking tobacco decreases stamina, and tobacco includes cigarettes, cigars, chewing tobacco, and more. Given these facts, what decreases stamina among the following options: - Plant growth is reduced - harmful substances - dehydration - influenza - liver cancer - Abnormal cell growth - smoking cigarettes - some viruses
(A).
smoking cigarettes

Ques:Specialization occurs when competing species evolve different adaptations, and every animal has special characteristics and physical features that help it survive. Given these facts, what helps species survive among the following options: - to stay warm - Energy - buttons - resistance - honeybees - competition - laziness - magic

Ans:competition

Carbon cycles quickly between organisms and the atmosphere, and water, carbon dioxide, and nitrogen are all needed by living things. Given these facts, what is needed by living things among the following options: - hate - sunlight - Chemical energy - pain - love - hydration - The atmosphere - Energy.
The atmosphere